Home / 82,843.20-124,153.92-30,203.04

Finding the Fourth Proportional to 82,843.20, 124,153.92 and 30,203.04

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Solution

The fourth proportional to 82,843.20, 124,153.92 and 30,203.04 is: 45,264.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,843.20 : 124,153.92 = 30,203.04 : x
  2. Step 2: Convert to fraction form
    82,843.20/124,153.92 = 30,203.04/x
  3. Step 3: Cross multiply
    82,843.20x = 124,153.92 × 30,203.04
  4. Step 4: Simplify right side
    82,843.20x = 3,749,825,811.92
  5. Step 5: Solve for x
    x = 3,749,825,811.92/82,843.20
  6. Step 6: Final answer
    x = 45,264.14

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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.