Home / 81,380.48-122,139.84-32,167.04

Finding the Fourth Proportional to 81,380.48, 122,139.84 and 32,167.04

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Solution

The fourth proportional to 81,380.48, 122,139.84 and 32,167.04 is: 48,277.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,380.48 : 122,139.84 = 32,167.04 : x
  2. Step 2: Convert to fraction form
    81,380.48/122,139.84 = 32,167.04/x
  3. Step 3: Cross multiply
    81,380.48x = 122,139.84 × 32,167.04
  4. Step 4: Simplify right side
    81,380.48x = 3,928,877,118.87
  5. Step 5: Solve for x
    x = 3,928,877,118.87/81,380.48
  6. Step 6: Final answer
    x = 48,277.88

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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.