Home / 67,820.20-101,730.30-34,642.60

Finding the Fourth Proportional to 67,820.20, 101,730.30 and 34,642.60

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Solution

The fourth proportional to 67,820.20, 101,730.30 and 34,642.60 is: 51,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,820.20 : 101,730.30 = 34,642.60 : x
  2. Step 2: Convert to fraction form
    67,820.20/101,730.30 = 34,642.60/x
  3. Step 3: Cross multiply
    67,820.20x = 101,730.30 × 34,642.60
  4. Step 4: Simplify right side
    67,820.20x = 3,524,202,090.78
  5. Step 5: Solve for x
    x = 3,524,202,090.78/67,820.20
  6. Step 6: Final answer
    x = 51,963.90

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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.