Home / 90,279.20-124,585.36-49,443.12

Finding the Fourth Proportional to 90,279.20, 124,585.36 and 49,443.12

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Solution

The fourth proportional to 90,279.20, 124,585.36 and 49,443.12 is: 68,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.20 : 124,585.36 = 49,443.12 : x
  2. Step 2: Convert to fraction form
    90,279.20/124,585.36 = 49,443.12/x
  3. Step 3: Cross multiply
    90,279.20x = 124,585.36 × 49,443.12
  4. Step 4: Simplify right side
    90,279.20x = 6,159,888,904.72
  5. Step 5: Solve for x
    x = 6,159,888,904.72/90,279.20
  6. Step 6: Final answer
    x = 68,231.54

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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.