Home / 80,921.36-121,411.20-41,497.04

Finding the Fourth Proportional to 80,921.36, 121,411.20 and 41,497.04

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Solution

The fourth proportional to 80,921.36, 121,411.20 and 41,497.04 is: 62,260.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,921.36 : 121,411.20 = 41,497.04 : x
  2. Step 2: Convert to fraction form
    80,921.36/121,411.20 = 41,497.04/x
  3. Step 3: Cross multiply
    80,921.36x = 121,411.20 × 41,497.04
  4. Step 4: Simplify right side
    80,921.36x = 5,038,205,422.85
  5. Step 5: Solve for x
    x = 5,038,205,422.85/80,921.36
  6. Step 6: Final answer
    x = 62,260.51

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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.