Home / 83,402.94-115,107.24-49,408.80

Finding the Fourth Proportional to 83,402.94, 115,107.24 and 49,408.80

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Solution

The fourth proportional to 83,402.94, 115,107.24 and 49,408.80 is: 68,190.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,402.94 : 115,107.24 = 49,408.80 : x
  2. Step 2: Convert to fraction form
    83,402.94/115,107.24 = 49,408.80/x
  3. Step 3: Cross multiply
    83,402.94x = 115,107.24 × 49,408.80
  4. Step 4: Simplify right side
    83,402.94x = 5,687,310,599.71
  5. Step 5: Solve for x
    x = 5,687,310,599.71/83,402.94
  6. Step 6: Final answer
    x = 68,190.77

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1.5x scale

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.