Home / 72,207.20-108,195.60-60,456.80

Finding the Fourth Proportional to 72,207.20, 108,195.60 and 60,456.80

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Solution

The fourth proportional to 72,207.20, 108,195.60 and 60,456.80 is: 90,588.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,207.20 : 108,195.60 = 60,456.80 : x
  2. Step 2: Convert to fraction form
    72,207.20/108,195.60 = 60,456.80/x
  3. Step 3: Cross multiply
    72,207.20x = 108,195.60 × 60,456.80
  4. Step 4: Simplify right side
    72,207.20x = 6,541,159,750.08
  5. Step 5: Solve for x
    x = 6,541,159,750.08/72,207.20
  6. Step 6: Final answer
    x = 90,588.75

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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.