Home / 67,844.50-101,685-25,115.78

Finding the Fourth Proportional to 67,844.50, 101,685 and 25,115.78

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Solution

The fourth proportional to 67,844.50, 101,685 and 25,115.78 is: 37,643.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,844.50 : 101,685 = 25,115.78 : x
  2. Step 2: Convert to fraction form
    67,844.50/101,685 = 25,115.78/x
  3. Step 3: Cross multiply
    67,844.50x = 101,685 × 25,115.78
  4. Step 4: Simplify right side
    67,844.50x = 2,553,898,089.30
  5. Step 5: Solve for x
    x = 2,553,898,089.30/67,844.50
  6. Step 6: Final answer
    x = 37,643.41

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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.