Home / 83,414.31-115,110.45-47,603.40

Finding the Fourth Proportional to 83,414.31, 115,110.45 and 47,603.40

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Solution

The fourth proportional to 83,414.31, 115,110.45 and 47,603.40 is: 65,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414.31 : 115,110.45 = 47,603.40 : x
  2. Step 2: Convert to fraction form
    83,414.31/115,110.45 = 47,603.40/x
  3. Step 3: Cross multiply
    83,414.31x = 115,110.45 × 47,603.40
  4. Step 4: Simplify right side
    83,414.31x = 5,479,648,795.53
  5. Step 5: Solve for x
    x = 5,479,648,795.53/83,414.31
  6. Step 6: Final answer
    x = 65,691.95

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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.