Home / 87,862.88-121,259.42-50,142.80

Finding the Fourth Proportional to 87,862.88, 121,259.42 and 50,142.80

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Solution

The fourth proportional to 87,862.88, 121,259.42 and 50,142.80 is: 69,202.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,862.88 : 121,259.42 = 50,142.80 : x
  2. Step 2: Convert to fraction form
    87,862.88/121,259.42 = 50,142.80/x
  3. Step 3: Cross multiply
    87,862.88x = 121,259.42 × 50,142.80
  4. Step 4: Simplify right side
    87,862.88x = 6,080,286,845.18
  5. Step 5: Solve for x
    x = 6,080,286,845.18/87,862.88
  6. Step 6: Final answer
    x = 69,202.00

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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.