Home / 55,240.38-76,229.10-31,363.88

Finding the Fourth Proportional to 55,240.38, 76,229.10 and 31,363.88

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Solution

The fourth proportional to 55,240.38, 76,229.10 and 31,363.88 is: 43,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,240.38 : 76,229.10 = 31,363.88 : x
  2. Step 2: Convert to fraction form
    55,240.38/76,229.10 = 31,363.88/x
  3. Step 3: Cross multiply
    55,240.38x = 76,229.10 × 31,363.88
  4. Step 4: Simplify right side
    55,240.38x = 2,390,839,963.76
  5. Step 5: Solve for x
    x = 2,390,839,963.76/55,240.38
  6. Step 6: Final answer
    x = 43,280.66

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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.