Home / 83,470.32-115,191.99-45,744.57

Finding the Fourth Proportional to 83,470.32, 115,191.99 and 45,744.57

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Solution

The fourth proportional to 83,470.32, 115,191.99 and 45,744.57 is: 63,129.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,470.32 : 115,191.99 = 45,744.57 : x
  2. Step 2: Convert to fraction form
    83,470.32/115,191.99 = 45,744.57/x
  3. Step 3: Cross multiply
    83,470.32x = 115,191.99 × 45,744.57
  4. Step 4: Simplify right side
    83,470.32x = 5,269,408,049.99
  5. Step 5: Solve for x
    x = 5,269,408,049.99/83,470.32
  6. Step 6: Final answer
    x = 63,129.12

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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.