Home / 83,559.34-125,379.24-39,178.90

Finding the Fourth Proportional to 83,559.34, 125,379.24 and 39,178.90

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Solution

The fourth proportional to 83,559.34, 125,379.24 and 39,178.90 is: 58,787.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,559.34 : 125,379.24 = 39,178.90 : x
  2. Step 2: Convert to fraction form
    83,559.34/125,379.24 = 39,178.90/x
  3. Step 3: Cross multiply
    83,559.34x = 125,379.24 × 39,178.90
  4. Step 4: Simplify right side
    83,559.34x = 4,912,220,706.04
  5. Step 5: Solve for x
    x = 4,912,220,706.04/83,559.34
  6. Step 6: Final answer
    x = 58,787.21

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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.