Home / 56,913.20-85,418.40-25,371.80

Finding the Fourth Proportional to 56,913.20, 85,418.40 and 25,371.80

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Solution

The fourth proportional to 56,913.20, 85,418.40 and 25,371.80 is: 38,079.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,913.20 : 85,418.40 = 25,371.80 : x
  2. Step 2: Convert to fraction form
    56,913.20/85,418.40 = 25,371.80/x
  3. Step 3: Cross multiply
    56,913.20x = 85,418.40 × 25,371.80
  4. Step 4: Simplify right side
    56,913.20x = 2,167,218,561.12
  5. Step 5: Solve for x
    x = 2,167,218,561.12/56,913.20
  6. Step 6: Final answer
    x = 38,079.37

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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.