Home / 67,940.11-101,871.28-28,463.95

Finding the Fourth Proportional to 67,940.11, 101,871.28 and 28,463.95

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Solution

The fourth proportional to 67,940.11, 101,871.28 and 28,463.95 is: 42,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,940.11 : 101,871.28 = 28,463.95 : x
  2. Step 2: Convert to fraction form
    67,940.11/101,871.28 = 28,463.95/x
  3. Step 3: Cross multiply
    67,940.11x = 101,871.28 × 28,463.95
  4. Step 4: Simplify right side
    67,940.11x = 2,899,659,020.36
  5. Step 5: Solve for x
    x = 2,899,659,020.36/67,940.11
  6. Step 6: Final answer
    x = 42,679.63

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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.