Home / 67,555.84-101,279.10-28,142.56

Finding the Fourth Proportional to 67,555.84, 101,279.10 and 28,142.56

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Solution

The fourth proportional to 67,555.84, 101,279.10 and 28,142.56 is: 42,191.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,555.84 : 101,279.10 = 28,142.56 : x
  2. Step 2: Convert to fraction form
    67,555.84/101,279.10 = 28,142.56/x
  3. Step 3: Cross multiply
    67,555.84x = 101,279.10 × 28,142.56
  4. Step 4: Simplify right side
    67,555.84x = 2,850,253,148.50
  5. Step 5: Solve for x
    x = 2,850,253,148.50/67,555.84
  6. Step 6: Final answer
    x = 42,191.07

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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.