Home / 99,691.14-137,586.15-57,248.76

Finding the Fourth Proportional to 99,691.14, 137,586.15 and 57,248.76

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Solution

The fourth proportional to 99,691.14, 137,586.15 and 57,248.76 is: 79,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,691.14 : 137,586.15 = 57,248.76 : x
  2. Step 2: Convert to fraction form
    99,691.14/137,586.15 = 57,248.76/x
  3. Step 3: Cross multiply
    99,691.14x = 137,586.15 × 57,248.76
  4. Step 4: Simplify right side
    99,691.14x = 7,876,636,480.67
  5. Step 5: Solve for x
    x = 7,876,636,480.67/99,691.14
  6. Step 6: Final answer
    x = 79,010.40

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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.