Home / 81,424.20-122,153.74-25,263.10

Finding the Fourth Proportional to 81,424.20, 122,153.74 and 25,263.10

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Solution

The fourth proportional to 81,424.20, 122,153.74 and 25,263.10 is: 37,900.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,424.20 : 122,153.74 = 25,263.10 : x
  2. Step 2: Convert to fraction form
    81,424.20/122,153.74 = 25,263.10/x
  3. Step 3: Cross multiply
    81,424.20x = 122,153.74 × 25,263.10
  4. Step 4: Simplify right side
    81,424.20x = 3,085,982,148.99
  5. Step 5: Solve for x
    x = 3,085,982,148.99/81,424.20
  6. Step 6: Final answer
    x = 37,900.06

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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.