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Finding the Fourth Proportional to 79,951.32, 119,962.35 and 41,991.66

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Solution

The fourth proportional to 79,951.32, 119,962.35 and 41,991.66 is: 63,006.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,951.32 : 119,962.35 = 41,991.66 : x
  2. Step 2: Convert to fraction form
    79,951.32/119,962.35 = 41,991.66/x
  3. Step 3: Cross multiply
    79,951.32x = 119,962.35 × 41,991.66
  4. Step 4: Simplify right side
    79,951.32x = 5,037,418,214.00
  5. Step 5: Solve for x
    x = 5,037,418,214.00/79,951.32
  6. Step 6: Final answer
    x = 63,006.07

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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.