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Finding the Fourth Proportional to 79,901.27, 119,847.21 and 29,977.20

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Solution

The fourth proportional to 79,901.27, 119,847.21 and 29,977.20 is: 44,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,901.27 : 119,847.21 = 29,977.20 : x
  2. Step 2: Convert to fraction form
    79,901.27/119,847.21 = 29,977.20/x
  3. Step 3: Cross multiply
    79,901.27x = 119,847.21 × 29,977.20
  4. Step 4: Simplify right side
    79,901.27x = 3,592,683,783.61
  5. Step 5: Solve for x
    x = 3,592,683,783.61/79,901.27
  6. Step 6: Final answer
    x = 44,964.04

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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.