Home / 87,799.74-121,163.17-47,513.47

Finding the Fourth Proportional to 87,799.74, 121,163.17 and 47,513.47

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Solution

The fourth proportional to 87,799.74, 121,163.17 and 47,513.47 is: 65,568.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,799.74 : 121,163.17 = 47,513.47 : x
  2. Step 2: Convert to fraction form
    87,799.74/121,163.17 = 47,513.47/x
  3. Step 3: Cross multiply
    87,799.74x = 121,163.17 × 47,513.47
  4. Step 4: Simplify right side
    87,799.74x = 5,756,882,642.90
  5. Step 5: Solve for x
    x = 5,756,882,642.90/87,799.74
  6. Step 6: Final answer
    x = 65,568.33

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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.