Home / 81,213.48-121,866.30-32,000.04

Finding the Fourth Proportional to 81,213.48, 121,866.30 and 32,000.04

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Solution

The fourth proportional to 81,213.48, 121,866.30 and 32,000.04 is: 48,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,213.48 : 121,866.30 = 32,000.04 : x
  2. Step 2: Convert to fraction form
    81,213.48/121,866.30 = 32,000.04/x
  3. Step 3: Cross multiply
    81,213.48x = 121,866.30 × 32,000.04
  4. Step 4: Simplify right side
    81,213.48x = 3,899,726,474.65
  5. Step 5: Solve for x
    x = 3,899,726,474.65/81,213.48
  6. Step 6: Final answer
    x = 48,018.22

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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.