Home / 87,662.60-120,974.10-49,943.24

Finding the Fourth Proportional to 87,662.60, 120,974.10 and 49,943.24

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Solution

The fourth proportional to 87,662.60, 120,974.10 and 49,943.24 is: 68,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,662.60 : 120,974.10 = 49,943.24 : x
  2. Step 2: Convert to fraction form
    87,662.60/120,974.10 = 49,943.24/x
  3. Step 3: Cross multiply
    87,662.60x = 120,974.10 × 49,943.24
  4. Step 4: Simplify right side
    87,662.60x = 6,041,838,510.08
  5. Step 5: Solve for x
    x = 6,041,838,510.08/87,662.60
  6. Step 6: Final answer
    x = 68,921.51

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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.