Home / 90,618.12-125,046.72-50,330.88

Finding the Fourth Proportional to 90,618.12, 125,046.72 and 50,330.88

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Solution

The fourth proportional to 90,618.12, 125,046.72 and 50,330.88 is: 69,453.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,618.12 : 125,046.72 = 50,330.88 : x
  2. Step 2: Convert to fraction form
    90,618.12/125,046.72 = 50,330.88/x
  3. Step 3: Cross multiply
    90,618.12x = 125,046.72 × 50,330.88
  4. Step 4: Simplify right side
    90,618.12x = 6,293,711,458.71
  5. Step 5: Solve for x
    x = 6,293,711,458.71/90,618.12
  6. Step 6: Final answer
    x = 69,453.12

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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.