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Finding the Fourth Proportional to 56,253.75, 77,631.80 and 31,104.87

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Solution

The fourth proportional to 56,253.75, 77,631.80 and 31,104.87 is: 42,925.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,253.75 : 77,631.80 = 31,104.87 : x
  2. Step 2: Convert to fraction form
    56,253.75/77,631.80 = 31,104.87/x
  3. Step 3: Cross multiply
    56,253.75x = 77,631.80 × 31,104.87
  4. Step 4: Simplify right side
    56,253.75x = 2,414,727,046.87
  5. Step 5: Solve for x
    x = 2,414,727,046.87/56,253.75
  6. Step 6: Final answer
    x = 42,925.62

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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.