Home / 87,865.01-121,254.29-47,578.78

Finding the Fourth Proportional to 87,865.01, 121,254.29 and 47,578.78

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Solution

The fourth proportional to 87,865.01, 121,254.29 and 47,578.78 is: 65,659.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,865.01 : 121,254.29 = 47,578.78 : x
  2. Step 2: Convert to fraction form
    87,865.01/121,254.29 = 47,578.78/x
  3. Step 3: Cross multiply
    87,865.01x = 121,254.29 × 47,578.78
  4. Step 4: Simplify right side
    87,865.01x = 5,769,131,003.78
  5. Step 5: Solve for x
    x = 5,769,131,003.78/87,865.01
  6. Step 6: Final answer
    x = 65,659.02

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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.