Home / 83,418.08-115,116.38-45,176.75

Finding the Fourth Proportional to 83,418.08, 115,116.38 and 45,176.75

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Solution

The fourth proportional to 83,418.08, 115,116.38 and 45,176.75 is: 62,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,418.08 : 115,116.38 = 45,176.75 : x
  2. Step 2: Convert to fraction form
    83,418.08/115,116.38 = 45,176.75/x
  3. Step 3: Cross multiply
    83,418.08x = 115,116.38 × 45,176.75
  4. Step 4: Simplify right side
    83,418.08x = 5,200,583,311.33
  5. Step 5: Solve for x
    x = 5,200,583,311.33/83,418.08
  6. Step 6: Final answer
    x = 62,343.60

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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.