Home / 83,746.61-125,546.05-31,119.19

Finding the Fourth Proportional to 83,746.61, 125,546.05 and 31,119.19

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Solution

The fourth proportional to 83,746.61, 125,546.05 and 31,119.19 is: 46,651.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,746.61 : 125,546.05 = 31,119.19 : x
  2. Step 2: Convert to fraction form
    83,746.61/125,546.05 = 31,119.19/x
  3. Step 3: Cross multiply
    83,746.61x = 125,546.05 × 31,119.19
  4. Step 4: Simplify right side
    83,746.61x = 3,906,891,108.73
  5. Step 5: Solve for x
    x = 3,906,891,108.73/83,746.61
  6. Step 6: Final answer
    x = 46,651.34

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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.