Home / 60,139.92-90,161.28-25,105.80

Finding the Fourth Proportional to 60,139.92, 90,161.28 and 25,105.80

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Solution

The fourth proportional to 60,139.92, 90,161.28 and 25,105.80 is: 37,638.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,139.92 : 90,161.28 = 25,105.80 : x
  2. Step 2: Convert to fraction form
    60,139.92/90,161.28 = 25,105.80/x
  3. Step 3: Cross multiply
    60,139.92x = 90,161.28 × 25,105.80
  4. Step 4: Simplify right side
    60,139.92x = 2,263,571,063.42
  5. Step 5: Solve for x
    x = 2,263,571,063.42/60,139.92
  6. Step 6: Final answer
    x = 37,638.41

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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.