Home / 75,640.32-113,447.07-28,244.79

Finding the Fourth Proportional to 75,640.32, 113,447.07 and 28,244.79

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Solution

The fourth proportional to 75,640.32, 113,447.07 and 28,244.79 is: 42,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,640.32 : 113,447.07 = 28,244.79 : x
  2. Step 2: Convert to fraction form
    75,640.32/113,447.07 = 28,244.79/x
  3. Step 3: Cross multiply
    75,640.32x = 113,447.07 × 28,244.79
  4. Step 4: Simplify right side
    75,640.32x = 3,204,288,668.27
  5. Step 5: Solve for x
    x = 3,204,288,668.27/75,640.32
  6. Step 6: Final answer
    x = 42,362.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.