Home / 87,743.05-121,085.02-47,456.86

Finding the Fourth Proportional to 87,743.05, 121,085.02 and 47,456.86

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Solution

The fourth proportional to 87,743.05, 121,085.02 and 47,456.86 is: 65,490.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743.05 : 121,085.02 = 47,456.86 : x
  2. Step 2: Convert to fraction form
    87,743.05/121,085.02 = 47,456.86/x
  3. Step 3: Cross multiply
    87,743.05x = 121,085.02 × 47,456.86
  4. Step 4: Simplify right side
    87,743.05x = 5,746,314,842.24
  5. Step 5: Solve for x
    x = 5,746,314,842.24/87,743.05
  6. Step 6: Final answer
    x = 65,490.26

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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.