Home / 71,029.20-106,543.80-67,748.70

Finding the Fourth Proportional to 71,029.20, 106,543.80 and 67,748.70

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Solution

The fourth proportional to 71,029.20, 106,543.80 and 67,748.70 is: 101,623.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,029.20 : 106,543.80 = 67,748.70 : x
  2. Step 2: Convert to fraction form
    71,029.20/106,543.80 = 67,748.70/x
  3. Step 3: Cross multiply
    71,029.20x = 106,543.80 × 67,748.70
  4. Step 4: Simplify right side
    71,029.20x = 7,218,203,943.06
  5. Step 5: Solve for x
    x = 7,218,203,943.06/71,029.20
  6. Step 6: Final answer
    x = 101,623.05

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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.