Home / 87,873.14-121,264.20-47,585.90

Finding the Fourth Proportional to 87,873.14, 121,264.20 and 47,585.90

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Solution

The fourth proportional to 87,873.14, 121,264.20 and 47,585.90 is: 65,668.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,873.14 : 121,264.20 = 47,585.90 : x
  2. Step 2: Convert to fraction form
    87,873.14/121,264.20 = 47,585.90/x
  3. Step 3: Cross multiply
    87,873.14x = 121,264.20 × 47,585.90
  4. Step 4: Simplify right side
    87,873.14x = 5,770,466,094.78
  5. Step 5: Solve for x
    x = 5,770,466,094.78/87,873.14
  6. Step 6: Final answer
    x = 65,668.14

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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.