Home / 68,508.81-94,541.45-40,209.03

Finding the Fourth Proportional to 68,508.81, 94,541.45 and 40,209.03

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Solution

The fourth proportional to 68,508.81, 94,541.45 and 40,209.03 is: 55,488.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,508.81 : 94,541.45 = 40,209.03 : x
  2. Step 2: Convert to fraction form
    68,508.81/94,541.45 = 40,209.03/x
  3. Step 3: Cross multiply
    68,508.81x = 94,541.45 × 40,209.03
  4. Step 4: Simplify right side
    68,508.81x = 3,801,419,798.25
  5. Step 5: Solve for x
    x = 3,801,419,798.25/68,508.81
  6. Step 6: Final answer
    x = 55,488.04

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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.