Home / 68,581.12-94,672.72-40,288.56

Finding the Fourth Proportional to 68,581.12, 94,672.72 and 40,288.56

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Solution

The fourth proportional to 68,581.12, 94,672.72 and 40,288.56 is: 55,616.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,581.12 : 94,672.72 = 40,288.56 : x
  2. Step 2: Convert to fraction form
    68,581.12/94,672.72 = 40,288.56/x
  3. Step 3: Cross multiply
    68,581.12x = 94,672.72 × 40,288.56
  4. Step 4: Simplify right side
    68,581.12x = 3,814,227,560.08
  5. Step 5: Solve for x
    x = 3,814,227,560.08/68,581.12
  6. Step 6: Final answer
    x = 55,616.29

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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.