Home / 67,980.20-101,884.04-38,414.60

Finding the Fourth Proportional to 67,980.20, 101,884.04 and 38,414.60

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Solution

The fourth proportional to 67,980.20, 101,884.04 and 38,414.60 is: 57,573.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,980.20 : 101,884.04 = 38,414.60 : x
  2. Step 2: Convert to fraction form
    67,980.20/101,884.04 = 38,414.60/x
  3. Step 3: Cross multiply
    67,980.20x = 101,884.04 × 38,414.60
  4. Step 4: Simplify right side
    67,980.20x = 3,913,833,941.49
  5. Step 5: Solve for x
    x = 3,913,833,941.49/67,980.20
  6. Step 6: Final answer
    x = 57,573.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.