Home / 66,763.20-92,142.96-38,463.36

Finding the Fourth Proportional to 66,763.20, 92,142.96 and 38,463.36

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Solution

The fourth proportional to 66,763.20, 92,142.96 and 38,463.36 is: 53,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,763.20 : 92,142.96 = 38,463.36 : x
  2. Step 2: Convert to fraction form
    66,763.20/92,142.96 = 38,463.36/x
  3. Step 3: Cross multiply
    66,763.20x = 92,142.96 × 38,463.36
  4. Step 4: Simplify right side
    66,763.20x = 3,544,127,841.95
  5. Step 5: Solve for x
    x = 3,544,127,841.95/66,763.20
  6. Step 6: Final answer
    x = 53,085.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.