Home / 87,661.19-131,505.62-28,483.04

Finding the Fourth Proportional to 87,661.19, 131,505.62 and 28,483.04

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Solution

The fourth proportional to 87,661.19, 131,505.62 and 28,483.04 is: 42,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,661.19 : 131,505.62 = 28,483.04 : x
  2. Step 2: Convert to fraction form
    87,661.19/131,505.62 = 28,483.04/x
  3. Step 3: Cross multiply
    87,661.19x = 131,505.62 × 28,483.04
  4. Step 4: Simplify right side
    87,661.19x = 3,745,679,834.68
  5. Step 5: Solve for x
    x = 3,745,679,834.68/87,661.19
  6. Step 6: Final answer
    x = 42,729.06

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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.