Home / 83,588.20-115,334.68-49,581.76

Finding the Fourth Proportional to 83,588.20, 115,334.68 and 49,581.76

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Solution

The fourth proportional to 83,588.20, 115,334.68 and 49,581.76 is: 68,412.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,588.20 : 115,334.68 = 49,581.76 : x
  2. Step 2: Convert to fraction form
    83,588.20/115,334.68 = 49,581.76/x
  3. Step 3: Cross multiply
    83,588.20x = 115,334.68 × 49,581.76
  4. Step 4: Simplify right side
    83,588.20x = 5,718,496,423.44
  5. Step 5: Solve for x
    x = 5,718,496,423.44/83,588.20
  6. Step 6: Final answer
    x = 68,412.72

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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.