Home / 80,757.27-121,126.37-21,597.53

Finding the Fourth Proportional to 80,757.27, 121,126.37 and 21,597.53

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Solution

The fourth proportional to 80,757.27, 121,126.37 and 21,597.53 is: 32,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,757.27 : 121,126.37 = 21,597.53 : x
  2. Step 2: Convert to fraction form
    80,757.27/121,126.37 = 21,597.53/x
  3. Step 3: Cross multiply
    80,757.27x = 121,126.37 × 21,597.53
  4. Step 4: Simplify right side
    80,757.27x = 2,616,029,696.25
  5. Step 5: Solve for x
    x = 2,616,029,696.25/80,757.27
  6. Step 6: Final answer
    x = 32,393.74

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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.