Home / 87,695.10-121,031.07-49,462.47

Finding the Fourth Proportional to 87,695.10, 121,031.07 and 49,462.47

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Solution

The fourth proportional to 87,695.10, 121,031.07 and 49,462.47 is: 68,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,695.10 : 121,031.07 = 49,462.47 : x
  2. Step 2: Convert to fraction form
    87,695.10/121,031.07 = 49,462.47/x
  3. Step 3: Cross multiply
    87,695.10x = 121,031.07 × 49,462.47
  4. Step 4: Simplify right side
    87,695.10x = 5,986,495,668.94
  5. Step 5: Solve for x
    x = 5,986,495,668.94/87,695.10
  6. Step 6: Final answer
    x = 68,264.88

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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.