Home / 68,343.18-94,311.45-40,067.70

Finding the Fourth Proportional to 68,343.18, 94,311.45 and 40,067.70

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Solution

The fourth proportional to 68,343.18, 94,311.45 and 40,067.70 is: 55,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,343.18 : 94,311.45 = 40,067.70 : x
  2. Step 2: Convert to fraction form
    68,343.18/94,311.45 = 40,067.70/x
  3. Step 3: Cross multiply
    68,343.18x = 94,311.45 × 40,067.70
  4. Step 4: Simplify right side
    68,343.18x = 3,778,842,885.17
  5. Step 5: Solve for x
    x = 3,778,842,885.17/68,343.18
  6. Step 6: Final answer
    x = 55,292.17

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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.