Home / 56,732.28-78,290.52-31,587.72

Finding the Fourth Proportional to 56,732.28, 78,290.52 and 31,587.72

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Solution

The fourth proportional to 56,732.28, 78,290.52 and 31,587.72 is: 43,591.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,732.28 : 78,290.52 = 31,587.72 : x
  2. Step 2: Convert to fraction form
    56,732.28/78,290.52 = 31,587.72/x
  3. Step 3: Cross multiply
    56,732.28x = 78,290.52 × 31,587.72
  4. Step 4: Simplify right side
    56,732.28x = 2,473,019,024.41
  5. Step 5: Solve for x
    x = 2,473,019,024.41/56,732.28
  6. Step 6: Final answer
    x = 43,591.04

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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.