Home / 40,921.20-61,381.80-25,369.20

Finding the Fourth Proportional to 40,921.20, 61,381.80 and 25,369.20

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Solution

The fourth proportional to 40,921.20, 61,381.80 and 25,369.20 is: 38,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,921.20 : 61,381.80 = 25,369.20 : x
  2. Step 2: Convert to fraction form
    40,921.20/61,381.80 = 25,369.20/x
  3. Step 3: Cross multiply
    40,921.20x = 61,381.80 × 25,369.20
  4. Step 4: Simplify right side
    40,921.20x = 1,557,207,160.56
  5. Step 5: Solve for x
    x = 1,557,207,160.56/40,921.20
  6. Step 6: Final answer
    x = 38,053.80

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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.