Home / 83,499.20-125,030.10-61,191.80

Finding the Fourth Proportional to 83,499.20, 125,030.10 and 61,191.80

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Solution

The fourth proportional to 83,499.20, 125,030.10 and 61,191.80 is: 91,627.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,499.20 : 125,030.10 = 61,191.80 : x
  2. Step 2: Convert to fraction form
    83,499.20/125,030.10 = 61,191.80/x
  3. Step 3: Cross multiply
    83,499.20x = 125,030.10 × 61,191.80
  4. Step 4: Simplify right side
    83,499.20x = 7,650,816,873.18
  5. Step 5: Solve for x
    x = 7,650,816,873.18/83,499.20
  6. Step 6: Final answer
    x = 91,627.43

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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.