Home / 90,219.40-124,499.68-49,934.88

Finding the Fourth Proportional to 90,219.40, 124,499.68 and 49,934.88

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Solution

The fourth proportional to 90,219.40, 124,499.68 and 49,934.88 is: 68,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,219.40 : 124,499.68 = 49,934.88 : x
  2. Step 2: Convert to fraction form
    90,219.40/124,499.68 = 49,934.88/x
  3. Step 3: Cross multiply
    90,219.40x = 124,499.68 × 49,934.88
  4. Step 4: Simplify right side
    90,219.40x = 6,216,876,580.84
  5. Step 5: Solve for x
    x = 6,216,876,580.84/90,219.40
  6. Step 6: Final answer
    x = 68,908.42

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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.