Home / 83,142.90-124,763.52-30,589.26

Finding the Fourth Proportional to 83,142.90, 124,763.52 and 30,589.26

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Solution

The fourth proportional to 83,142.90, 124,763.52 and 30,589.26 is: 45,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,142.90 : 124,763.52 = 30,589.26 : x
  2. Step 2: Convert to fraction form
    83,142.90/124,763.52 = 30,589.26/x
  3. Step 3: Cross multiply
    83,142.90x = 124,763.52 × 30,589.26
  4. Step 4: Simplify right side
    83,142.90x = 3,816,423,751.80
  5. Step 5: Solve for x
    x = 3,816,423,751.80/83,142.90
  6. Step 6: Final answer
    x = 45,901.98

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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.