Home / 99,934.74-137,915.28-57,499.74

Finding the Fourth Proportional to 99,934.74, 137,915.28 and 57,499.74

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Solution

The fourth proportional to 99,934.74, 137,915.28 and 57,499.74 is: 79,352.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,934.74 : 137,915.28 = 57,499.74 : x
  2. Step 2: Convert to fraction form
    99,934.74/137,915.28 = 57,499.74/x
  3. Step 3: Cross multiply
    99,934.74x = 137,915.28 × 57,499.74
  4. Step 4: Simplify right side
    99,934.74x = 7,930,092,742.03
  5. Step 5: Solve for x
    x = 7,930,092,742.03/99,934.74
  6. Step 6: Final answer
    x = 79,352.71

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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.