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Finding the Fourth Proportional to 79,477.95, 119,108.39 and 40,061.73

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Solution

The fourth proportional to 79,477.95, 119,108.39 and 40,061.73 is: 60,037.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,477.95 : 119,108.39 = 40,061.73 : x
  2. Step 2: Convert to fraction form
    79,477.95/119,108.39 = 40,061.73/x
  3. Step 3: Cross multiply
    79,477.95x = 119,108.39 × 40,061.73
  4. Step 4: Simplify right side
    79,477.95x = 4,771,687,960.61
  5. Step 5: Solve for x
    x = 4,771,687,960.61/79,477.95
  6. Step 6: Final answer
    x = 60,037.88

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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.