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Finding the Fourth Proportional to 90,959.87, 125,524.31 and 50,671.25

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Solution

The fourth proportional to 90,959.87, 125,524.31 and 50,671.25 is: 69,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,959.87 : 125,524.31 = 50,671.25 : x
  2. Step 2: Convert to fraction form
    90,959.87/125,524.31 = 50,671.25/x
  3. Step 3: Cross multiply
    90,959.87x = 125,524.31 × 50,671.25
  4. Step 4: Simplify right side
    90,959.87x = 6,360,473,439.73
  5. Step 5: Solve for x
    x = 6,360,473,439.73/90,959.87
  6. Step 6: Final answer
    x = 69,926.15

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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.