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Finding the Fourth Proportional to 83,354.40, 125,089.20 and 60,000.80

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Solution

The fourth proportional to 83,354.40, 125,089.20 and 60,000.80 is: 90,042.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,354.40 : 125,089.20 = 60,000.80 : x
  2. Step 2: Convert to fraction form
    83,354.40/125,089.20 = 60,000.80/x
  3. Step 3: Cross multiply
    83,354.40x = 125,089.20 × 60,000.80
  4. Step 4: Simplify right side
    83,354.40x = 7,505,452,071.36
  5. Step 5: Solve for x
    x = 7,505,452,071.36/83,354.40
  6. Step 6: Final answer
    x = 90,042.66

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1.5x scale

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.