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Finding the Fourth Proportional to 72,377.68, 108,604.02 and 48,378.78

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Solution

The fourth proportional to 72,377.68, 108,604.02 and 48,378.78 is: 72,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,377.68 : 108,604.02 = 48,378.78 : x
  2. Step 2: Convert to fraction form
    72,377.68/108,604.02 = 48,378.78/x
  3. Step 3: Cross multiply
    72,377.68x = 108,604.02 × 48,378.78
  4. Step 4: Simplify right side
    72,377.68x = 5,254,129,990.70
  5. Step 5: Solve for x
    x = 5,254,129,990.70/72,377.68
  6. Step 6: Final answer
    x = 72,593.24

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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.