Home / 72,251.91-108,378.02-38,987.64

Finding the Fourth Proportional to 72,251.91, 108,378.02 and 38,987.64

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Solution

The fourth proportional to 72,251.91, 108,378.02 and 38,987.64 is: 58,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,251.91 : 108,378.02 = 38,987.64 : x
  2. Step 2: Convert to fraction form
    72,251.91/108,378.02 = 38,987.64/x
  3. Step 3: Cross multiply
    72,251.91x = 108,378.02 × 38,987.64
  4. Step 4: Simplify right side
    72,251.91x = 4,225,403,227.67
  5. Step 5: Solve for x
    x = 4,225,403,227.67/72,251.91
  6. Step 6: Final answer
    x = 58,481.54

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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.