Home / 83,558.34-125,377.74-39,177.90

Finding the Fourth Proportional to 83,558.34, 125,377.74 and 39,177.90

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Solution

The fourth proportional to 83,558.34, 125,377.74 and 39,177.90 is: 58,785.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,558.34 : 125,377.74 = 39,177.90 : x
  2. Step 2: Convert to fraction form
    83,558.34/125,377.74 = 39,177.90/x
  3. Step 3: Cross multiply
    83,558.34x = 125,377.74 × 39,177.90
  4. Step 4: Simplify right side
    83,558.34x = 4,912,036,559.95
  5. Step 5: Solve for x
    x = 4,912,036,559.95/83,558.34
  6. Step 6: Final answer
    x = 58,785.71

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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.