Home / 83,391.15-124,873.60-45,910.02

Finding the Fourth Proportional to 83,391.15, 124,873.60 and 45,910.02

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Solution

The fourth proportional to 83,391.15, 124,873.60 and 45,910.02 is: 68,747.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,391.15 : 124,873.60 = 45,910.02 : x
  2. Step 2: Convert to fraction form
    83,391.15/124,873.60 = 45,910.02/x
  3. Step 3: Cross multiply
    83,391.15x = 124,873.60 × 45,910.02
  4. Step 4: Simplify right side
    83,391.15x = 5,732,949,913.05
  5. Step 5: Solve for x
    x = 5,732,949,913.05/83,391.15
  6. Step 6: Final answer
    x = 68,747.70

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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.