Home / 75,449.40-104,129.16-45,251.32

Finding the Fourth Proportional to 75,449.40, 104,129.16 and 45,251.32

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Solution

The fourth proportional to 75,449.40, 104,129.16 and 45,251.32 is: 62,452.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,449.40 : 104,129.16 = 45,251.32 : x
  2. Step 2: Convert to fraction form
    75,449.40/104,129.16 = 45,251.32/x
  3. Step 3: Cross multiply
    75,449.40x = 104,129.16 × 45,251.32
  4. Step 4: Simplify right side
    75,449.40x = 4,711,981,940.49
  5. Step 5: Solve for x
    x = 4,711,981,940.49/75,449.40
  6. Step 6: Final answer
    x = 62,452.21

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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.