Home / 87,487.34-120,736.46-49,260.04

Finding the Fourth Proportional to 87,487.34, 120,736.46 and 49,260.04

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Solution

The fourth proportional to 87,487.34, 120,736.46 and 49,260.04 is: 67,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,487.34 : 120,736.46 = 49,260.04 : x
  2. Step 2: Convert to fraction form
    87,487.34/120,736.46 = 49,260.04/x
  3. Step 3: Cross multiply
    87,487.34x = 120,736.46 × 49,260.04
  4. Step 4: Simplify right side
    87,487.34x = 5,947,482,849.06
  5. Step 5: Solve for x
    x = 5,947,482,849.06/87,487.34
  6. Step 6: Final answer
    x = 67,981.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.