Home / 83,492.20-115,216.74-45,765.16

Finding the Fourth Proportional to 83,492.20, 115,216.74 and 45,765.16

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Solution

The fourth proportional to 83,492.20, 115,216.74 and 45,765.16 is: 63,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,492.20 : 115,216.74 = 45,765.16 : x
  2. Step 2: Convert to fraction form
    83,492.20/115,216.74 = 45,765.16/x
  3. Step 3: Cross multiply
    83,492.20x = 115,216.74 × 45,765.16
  4. Step 4: Simplify right side
    83,492.20x = 5,272,912,540.78
  5. Step 5: Solve for x
    x = 5,272,912,540.78/83,492.20
  6. Step 6: Final answer
    x = 63,154.55

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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.