Home / 87,760.52-121,109.62-47,474.20

Finding the Fourth Proportional to 87,760.52, 121,109.62 and 47,474.20

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Solution

The fourth proportional to 87,760.52, 121,109.62 and 47,474.20 is: 65,514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,760.52 : 121,109.62 = 47,474.20 : x
  2. Step 2: Convert to fraction form
    87,760.52/121,109.62 = 47,474.20/x
  3. Step 3: Cross multiply
    87,760.52x = 121,109.62 × 47,474.20
  4. Step 4: Simplify right side
    87,760.52x = 5,749,582,321.80
  5. Step 5: Solve for x
    x = 5,749,582,321.80/87,760.52
  6. Step 6: Final answer
    x = 65,514.45

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1.5x scale

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.