Home / 81,423.20-122,152.24-25,262.10

Finding the Fourth Proportional to 81,423.20, 122,152.24 and 25,262.10

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Solution

The fourth proportional to 81,423.20, 122,152.24 and 25,262.10 is: 37,898.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,423.20 : 122,152.24 = 25,262.10 : x
  2. Step 2: Convert to fraction form
    81,423.20/122,152.24 = 25,262.10/x
  3. Step 3: Cross multiply
    81,423.20x = 122,152.24 × 25,262.10
  4. Step 4: Simplify right side
    81,423.20x = 3,085,822,102.10
  5. Step 5: Solve for x
    x = 3,085,822,102.10/81,423.20
  6. Step 6: Final answer
    x = 37,898.56

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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.