Home / 68,410.85-94,422.71-40,125.65

Finding the Fourth Proportional to 68,410.85, 94,422.71 and 40,125.65

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Solution

The fourth proportional to 68,410.85, 94,422.71 and 40,125.65 is: 55,382.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,410.85 : 94,422.71 = 40,125.65 : x
  2. Step 2: Convert to fraction form
    68,410.85/94,422.71 = 40,125.65/x
  3. Step 3: Cross multiply
    68,410.85x = 94,422.71 × 40,125.65
  4. Step 4: Simplify right side
    68,410.85x = 3,788,772,241.71
  5. Step 5: Solve for x
    x = 3,788,772,241.71/68,410.85
  6. Step 6: Final answer
    x = 55,382.63

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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.