Home / 52,127.66-78,191.50-20,955.62

Finding the Fourth Proportional to 52,127.66, 78,191.50 and 20,955.62

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Solution

The fourth proportional to 52,127.66, 78,191.50 and 20,955.62 is: 31,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,127.66 : 78,191.50 = 20,955.62 : x
  2. Step 2: Convert to fraction form
    52,127.66/78,191.50 = 20,955.62/x
  3. Step 3: Cross multiply
    52,127.66x = 78,191.50 × 20,955.62
  4. Step 4: Simplify right side
    52,127.66x = 1,638,551,361.23
  5. Step 5: Solve for x
    x = 1,638,551,361.23/52,127.66
  6. Step 6: Final answer
    x = 31,433.43

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Half scale
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Double scale
Find fourth proportional to 52,128.66, 78,193 and 20,956.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.