Home / 87,275.84-120,433.27-49,032.39

Finding the Fourth Proportional to 87,275.84, 120,433.27 and 49,032.39

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Solution

The fourth proportional to 87,275.84, 120,433.27 and 49,032.39 is: 67,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,275.84 : 120,433.27 = 49,032.39 : x
  2. Step 2: Convert to fraction form
    87,275.84/120,433.27 = 49,032.39/x
  3. Step 3: Cross multiply
    87,275.84x = 120,433.27 × 49,032.39
  4. Step 4: Simplify right side
    87,275.84x = 5,905,131,063.62
  5. Step 5: Solve for x
    x = 5,905,131,063.62/87,275.84
  6. Step 6: Final answer
    x = 67,660.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.