Home / 87,866.68-121,253.34-50,139.04

Finding the Fourth Proportional to 87,866.68, 121,253.34 and 50,139.04

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Solution

The fourth proportional to 87,866.68, 121,253.34 and 50,139.04 is: 69,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,866.68 : 121,253.34 = 50,139.04 : x
  2. Step 2: Convert to fraction form
    87,866.68/121,253.34 = 50,139.04/x
  3. Step 3: Cross multiply
    87,866.68x = 121,253.34 × 50,139.04
  4. Step 4: Simplify right side
    87,866.68x = 6,079,526,064.39
  5. Step 5: Solve for x
    x = 6,079,526,064.39/87,866.68
  6. Step 6: Final answer
    x = 69,190.35

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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.