Home / 90,422.04-124,781.10-50,135.88

Finding the Fourth Proportional to 90,422.04, 124,781.10 and 50,135.88

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Solution

The fourth proportional to 90,422.04, 124,781.10 and 50,135.88 is: 69,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,422.04 : 124,781.10 = 50,135.88 : x
  2. Step 2: Convert to fraction form
    90,422.04/124,781.10 = 50,135.88/x
  3. Step 3: Cross multiply
    90,422.04x = 124,781.10 × 50,135.88
  4. Step 4: Simplify right side
    90,422.04x = 6,256,010,255.87
  5. Step 5: Solve for x
    x = 6,256,010,255.87/90,422.04
  6. Step 6: Final answer
    x = 69,186.79

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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.