Home / 67,378.38-101,072.43-20,625.18

Finding the Fourth Proportional to 67,378.38, 101,072.43 and 20,625.18

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Solution

The fourth proportional to 67,378.38, 101,072.43 and 20,625.18 is: 30,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,378.38 : 101,072.43 = 20,625.18 : x
  2. Step 2: Convert to fraction form
    67,378.38/101,072.43 = 20,625.18/x
  3. Step 3: Cross multiply
    67,378.38x = 101,072.43 × 20,625.18
  4. Step 4: Simplify right side
    67,378.38x = 2,084,637,061.79
  5. Step 5: Solve for x
    x = 2,084,637,061.79/67,378.38
  6. Step 6: Final answer
    x = 30,939.26

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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.