Home / 87,483.76-120,726.48-49,243.12

Finding the Fourth Proportional to 87,483.76, 120,726.48 and 49,243.12

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Solution

The fourth proportional to 87,483.76, 120,726.48 and 49,243.12 is: 67,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,483.76 : 120,726.48 = 49,243.12 : x
  2. Step 2: Convert to fraction form
    87,483.76/120,726.48 = 49,243.12/x
  3. Step 3: Cross multiply
    87,483.76x = 120,726.48 × 49,243.12
  4. Step 4: Simplify right side
    87,483.76x = 5,944,948,541.82
  5. Step 5: Solve for x
    x = 5,944,948,541.82/87,483.76
  6. Step 6: Final answer
    x = 67,954.88

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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.