Home / 87,280.47-120,447.54-49,041.63

Finding the Fourth Proportional to 87,280.47, 120,447.54 and 49,041.63

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Solution

The fourth proportional to 87,280.47, 120,447.54 and 49,041.63 is: 67,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,280.47 : 120,447.54 = 49,041.63 : x
  2. Step 2: Convert to fraction form
    87,280.47/120,447.54 = 49,041.63/x
  3. Step 3: Cross multiply
    87,280.47x = 120,447.54 × 49,041.63
  4. Step 4: Simplify right side
    87,280.47x = 5,906,943,691.09
  5. Step 5: Solve for x
    x = 5,906,943,691.09/87,280.47
  6. Step 6: Final answer
    x = 67,677.73

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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.