Home / 68,811.38-94,959.87-40,150.74

Finding the Fourth Proportional to 68,811.38, 94,959.87 and 40,150.74

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Solution

The fourth proportional to 68,811.38, 94,959.87 and 40,150.74 is: 55,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,811.38 : 94,959.87 = 40,150.74 : x
  2. Step 2: Convert to fraction form
    68,811.38/94,959.87 = 40,150.74/x
  3. Step 3: Cross multiply
    68,811.38x = 94,959.87 × 40,150.74
  4. Step 4: Simplify right side
    68,811.38x = 3,812,709,050.80
  5. Step 5: Solve for x
    x = 3,812,709,050.80/68,811.38
  6. Step 6: Final answer
    x = 55,408.12

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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.