Home / 67,400.20-101,165.10-34,157.80

Finding the Fourth Proportional to 67,400.20, 101,165.10 and 34,157.80

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Solution

The fourth proportional to 67,400.20, 101,165.10 and 34,157.80 is: 51,269.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,400.20 : 101,165.10 = 34,157.80 : x
  2. Step 2: Convert to fraction form
    67,400.20/101,165.10 = 34,157.80/x
  3. Step 3: Cross multiply
    67,400.20x = 101,165.10 × 34,157.80
  4. Step 4: Simplify right side
    67,400.20x = 3,455,577,252.78
  5. Step 5: Solve for x
    x = 3,455,577,252.78/67,400.20
  6. Step 6: Final answer
    x = 51,269.54

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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.