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Finding the Fourth Proportional to 65,022.20, 89,737.92 and 36,729.71

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Solution

The fourth proportional to 65,022.20, 89,737.92 and 36,729.71 is: 50,691.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,022.20 : 89,737.92 = 36,729.71 : x
  2. Step 2: Convert to fraction form
    65,022.20/89,737.92 = 36,729.71/x
  3. Step 3: Cross multiply
    65,022.20x = 89,737.92 × 36,729.71
  4. Step 4: Simplify right side
    65,022.20x = 3,296,047,328.91
  5. Step 5: Solve for x
    x = 3,296,047,328.91/65,022.20
  6. Step 6: Final answer
    x = 50,691.11

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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.