Home / 115,331.60-172,981.20-36,453.80

Finding the Fourth Proportional to 115,331.60, 172,981.20 and 36,453.80

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Solution

The fourth proportional to 115,331.60, 172,981.20 and 36,453.80 is: 54,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,331.60 : 172,981.20 = 36,453.80 : x
  2. Step 2: Convert to fraction form
    115,331.60/172,981.20 = 36,453.80/x
  3. Step 3: Cross multiply
    115,331.60x = 172,981.20 × 36,453.80
  4. Step 4: Simplify right side
    115,331.60x = 6,305,822,068.56
  5. Step 5: Solve for x
    x = 6,305,822,068.56/115,331.60
  6. Step 6: Final answer
    x = 54,675.58

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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.