Home / 68,829.11-94,984.20-40,168.47

Finding the Fourth Proportional to 68,829.11, 94,984.20 and 40,168.47

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Solution

The fourth proportional to 68,829.11, 94,984.20 and 40,168.47 is: 55,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,829.11 : 94,984.20 = 40,168.47 : x
  2. Step 2: Convert to fraction form
    68,829.11/94,984.20 = 40,168.47/x
  3. Step 3: Cross multiply
    68,829.11x = 94,984.20 × 40,168.47
  4. Step 4: Simplify right side
    68,829.11x = 3,815,369,988.17
  5. Step 5: Solve for x
    x = 3,815,369,988.17/68,829.11
  6. Step 6: Final answer
    x = 55,432.51

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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.