Home / 80,755.26-121,153.14-47,503.14

Finding the Fourth Proportional to 80,755.26, 121,153.14 and 47,503.14

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Solution

The fourth proportional to 80,755.26, 121,153.14 and 47,503.14 is: 71,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,755.26 : 121,153.14 = 47,503.14 : x
  2. Step 2: Convert to fraction form
    80,755.26/121,153.14 = 47,503.14/x
  3. Step 3: Cross multiply
    80,755.26x = 121,153.14 × 47,503.14
  4. Step 4: Simplify right side
    80,755.26x = 5,755,154,570.86
  5. Step 5: Solve for x
    x = 5,755,154,570.86/80,755.26
  6. Step 6: Final answer
    x = 71,266.62

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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.