Home / 80,820.90-121,244.13-24,648.17

Finding the Fourth Proportional to 80,820.90, 121,244.13 and 24,648.17

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Solution

The fourth proportional to 80,820.90, 121,244.13 and 24,648.17 is: 36,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,820.90 : 121,244.13 = 24,648.17 : x
  2. Step 2: Convert to fraction form
    80,820.90/121,244.13 = 24,648.17/x
  3. Step 3: Cross multiply
    80,820.90x = 121,244.13 × 24,648.17
  4. Step 4: Simplify right side
    80,820.90x = 2,988,445,321.52
  5. Step 5: Solve for x
    x = 2,988,445,321.52/80,820.90
  6. Step 6: Final answer
    x = 36,976.15

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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.