Home / 87,680.88-121,007.52-49,967.28

Finding the Fourth Proportional to 87,680.88, 121,007.52 and 49,967.28

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Solution

The fourth proportional to 87,680.88, 121,007.52 and 49,967.28 is: 68,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.88 : 121,007.52 = 49,967.28 : x
  2. Step 2: Convert to fraction form
    87,680.88/121,007.52 = 49,967.28/x
  3. Step 3: Cross multiply
    87,680.88x = 121,007.52 × 49,967.28
  4. Step 4: Simplify right side
    87,680.88x = 6,046,416,633.95
  5. Step 5: Solve for x
    x = 6,046,416,633.95/87,680.88
  6. Step 6: Final answer
    x = 68,959.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.