Home / 87,743.46-121,085.49-47,456.91

Finding the Fourth Proportional to 87,743.46, 121,085.49 and 47,456.91

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Solution

The fourth proportional to 87,743.46, 121,085.49 and 47,456.91 is: 65,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743.46 : 121,085.49 = 47,456.91 : x
  2. Step 2: Convert to fraction form
    87,743.46/121,085.49 = 47,456.91/x
  3. Step 3: Cross multiply
    87,743.46x = 121,085.49 × 47,456.91
  4. Step 4: Simplify right side
    87,743.46x = 5,746,343,201.24
  5. Step 5: Solve for x
    x = 5,746,343,201.24/87,743.46
  6. Step 6: Final answer
    x = 65,490.27

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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.