Home / 67,979.18-102,031-34,722.54

Finding the Fourth Proportional to 67,979.18, 102,031 and 34,722.54

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Solution

The fourth proportional to 67,979.18, 102,031 and 34,722.54 is: 52,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,979.18 : 102,031 = 34,722.54 : x
  2. Step 2: Convert to fraction form
    67,979.18/102,031 = 34,722.54/x
  3. Step 3: Cross multiply
    67,979.18x = 102,031 × 34,722.54
  4. Step 4: Simplify right side
    67,979.18x = 3,542,775,478.74
  5. Step 5: Solve for x
    x = 3,542,775,478.74/67,979.18
  6. Step 6: Final answer
    x = 52,115.60

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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.