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Finding the Fourth Proportional to 63,785.70, 88,022.16 and 35,490.78

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Solution

The fourth proportional to 63,785.70, 88,022.16 and 35,490.78 is: 48,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,785.70 : 88,022.16 = 35,490.78 : x
  2. Step 2: Convert to fraction form
    63,785.70/88,022.16 = 35,490.78/x
  3. Step 3: Cross multiply
    63,785.70x = 88,022.16 × 35,490.78
  4. Step 4: Simplify right side
    63,785.70x = 3,123,975,115.68
  5. Step 5: Solve for x
    x = 3,123,975,115.68/63,785.70
  6. Step 6: Final answer
    x = 48,976.10

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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.