Home / 68,990.64-95,207.42-40,311.95

Finding the Fourth Proportional to 68,990.64, 95,207.42 and 40,311.95

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Solution

The fourth proportional to 68,990.64, 95,207.42 and 40,311.95 is: 55,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,990.64 : 95,207.42 = 40,311.95 : x
  2. Step 2: Convert to fraction form
    68,990.64/95,207.42 = 40,311.95/x
  3. Step 3: Cross multiply
    68,990.64x = 95,207.42 × 40,311.95
  4. Step 4: Simplify right side
    68,990.64x = 3,837,996,077.07
  5. Step 5: Solve for x
    x = 3,837,996,077.07/68,990.64
  6. Step 6: Final answer
    x = 55,630.68

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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.