Home / 50,111.08-75,166.58-20,528.98

Finding the Fourth Proportional to 50,111.08, 75,166.58 and 20,528.98

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Solution

The fourth proportional to 50,111.08, 75,166.58 and 20,528.98 is: 30,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,111.08 : 75,166.58 = 20,528.98 : x
  2. Step 2: Convert to fraction form
    50,111.08/75,166.58 = 20,528.98/x
  3. Step 3: Cross multiply
    50,111.08x = 75,166.58 × 20,528.98
  4. Step 4: Simplify right side
    50,111.08x = 1,543,093,217.49
  5. Step 5: Solve for x
    x = 1,543,093,217.49/50,111.08
  6. Step 6: Final answer
    x = 30,793.45

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Double scale
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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.