Home / 84,538.95-126,863.78-31,948.43

Finding the Fourth Proportional to 84,538.95, 126,863.78 and 31,948.43

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Solution

The fourth proportional to 84,538.95, 126,863.78 and 31,948.43 is: 47,943.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,538.95 : 126,863.78 = 31,948.43 : x
  2. Step 2: Convert to fraction form
    84,538.95/126,863.78 = 31,948.43/x
  3. Step 3: Cross multiply
    84,538.95x = 126,863.78 × 31,948.43
  4. Step 4: Simplify right side
    84,538.95x = 4,053,098,594.87
  5. Step 5: Solve for x
    x = 4,053,098,594.87/84,538.95
  6. Step 6: Final answer
    x = 47,943.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.