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Finding the Fourth Proportional to 72,229.44, 108,360.51 and 38,948.76

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Solution

The fourth proportional to 72,229.44, 108,360.51 and 38,948.76 is: 58,431.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,229.44 : 108,360.51 = 38,948.76 : x
  2. Step 2: Convert to fraction form
    72,229.44/108,360.51 = 38,948.76/x
  3. Step 3: Cross multiply
    72,229.44x = 108,360.51 × 38,948.76
  4. Step 4: Simplify right side
    72,229.44x = 4,220,507,497.47
  5. Step 5: Solve for x
    x = 4,220,507,497.47/72,229.44
  6. Step 6: Final answer
    x = 58,431.96

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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.