Home / 87,422.68-120,643.12-49,182.26

Finding the Fourth Proportional to 87,422.68, 120,643.12 and 49,182.26

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Solution

The fourth proportional to 87,422.68, 120,643.12 and 49,182.26 is: 67,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,422.68 : 120,643.12 = 49,182.26 : x
  2. Step 2: Convert to fraction form
    87,422.68/120,643.12 = 49,182.26/x
  3. Step 3: Cross multiply
    87,422.68x = 120,643.12 × 49,182.26
  4. Step 4: Simplify right side
    87,422.68x = 5,933,501,295.05
  5. Step 5: Solve for x
    x = 5,933,501,295.05/87,422.68
  6. Step 6: Final answer
    x = 67,871.42

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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.