Home / 68,396.49-94,387.55-40,102.65

Finding the Fourth Proportional to 68,396.49, 94,387.55 and 40,102.65

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Solution

The fourth proportional to 68,396.49, 94,387.55 and 40,102.65 is: 55,341.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,396.49 : 94,387.55 = 40,102.65 : x
  2. Step 2: Convert to fraction form
    68,396.49/94,387.55 = 40,102.65/x
  3. Step 3: Cross multiply
    68,396.49x = 94,387.55 × 40,102.65
  4. Step 4: Simplify right side
    68,396.49x = 3,785,190,681.49
  5. Step 5: Solve for x
    x = 3,785,190,681.49/68,396.49
  6. Step 6: Final answer
    x = 55,341.88

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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.