Home / 63,728.13-87,908.94-38,227.71

Finding the Fourth Proportional to 63,728.13, 87,908.94 and 38,227.71

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Solution

The fourth proportional to 63,728.13, 87,908.94 and 38,227.71 is: 52,732.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,728.13 : 87,908.94 = 38,227.71 : x
  2. Step 2: Convert to fraction form
    63,728.13/87,908.94 = 38,227.71/x
  3. Step 3: Cross multiply
    63,728.13x = 87,908.94 × 38,227.71
  4. Step 4: Simplify right side
    63,728.13x = 3,360,557,464.73
  5. Step 5: Solve for x
    x = 3,360,557,464.73/63,728.13
  6. Step 6: Final answer
    x = 52,732.72

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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.