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Finding the Fourth Proportional to 63,715.84, 87,921.12 and 36,854.08

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Solution

The fourth proportional to 63,715.84, 87,921.12 and 36,854.08 is: 50,854.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,715.84 : 87,921.12 = 36,854.08 : x
  2. Step 2: Convert to fraction form
    63,715.84/87,921.12 = 36,854.08/x
  3. Step 3: Cross multiply
    63,715.84x = 87,921.12 × 36,854.08
  4. Step 4: Simplify right side
    63,715.84x = 3,240,251,990.17
  5. Step 5: Solve for x
    x = 3,240,251,990.17/63,715.84
  6. Step 6: Final answer
    x = 50,854.73

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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.