Home / 80,755.45-121,152.34-25,351.45

Finding the Fourth Proportional to 80,755.45, 121,152.34 and 25,351.45

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Solution

The fourth proportional to 80,755.45, 121,152.34 and 25,351.45 is: 38,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,755.45 : 121,152.34 = 25,351.45 : x
  2. Step 2: Convert to fraction form
    80,755.45/121,152.34 = 25,351.45/x
  3. Step 3: Cross multiply
    80,755.45x = 121,152.34 × 25,351.45
  4. Step 4: Simplify right side
    80,755.45x = 3,071,387,218.70
  5. Step 5: Solve for x
    x = 3,071,387,218.70/80,755.45
  6. Step 6: Final answer
    x = 38,033.19

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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.