Home / 90,087.12-124,320.22-49,251.40

Finding the Fourth Proportional to 90,087.12, 124,320.22 and 49,251.40

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Solution

The fourth proportional to 90,087.12, 124,320.22 and 49,251.40 is: 67,966.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,087.12 : 124,320.22 = 49,251.40 : x
  2. Step 2: Convert to fraction form
    90,087.12/124,320.22 = 49,251.40/x
  3. Step 3: Cross multiply
    90,087.12x = 124,320.22 × 49,251.40
  4. Step 4: Simplify right side
    90,087.12x = 6,122,944,449.38
  5. Step 5: Solve for x
    x = 6,122,944,449.38/90,087.12
  6. Step 6: Final answer
    x = 67,966.92

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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.