Home / 96,789.76-145,188.96-30,231.20

Finding the Fourth Proportional to 96,789.76, 145,188.96 and 30,231.20

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Solution

The fourth proportional to 96,789.76, 145,188.96 and 30,231.20 is: 45,348.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,789.76 : 145,188.96 = 30,231.20 : x
  2. Step 2: Convert to fraction form
    96,789.76/145,188.96 = 30,231.20/x
  3. Step 3: Cross multiply
    96,789.76x = 145,188.96 × 30,231.20
  4. Step 4: Simplify right side
    96,789.76x = 4,389,236,487.55
  5. Step 5: Solve for x
    x = 4,389,236,487.55/96,789.76
  6. Step 6: Final answer
    x = 45,348.15

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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.