Home / 83,503.24-115,234.32-45,777.76

Finding the Fourth Proportional to 83,503.24, 115,234.32 and 45,777.76

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Solution

The fourth proportional to 83,503.24, 115,234.32 and 45,777.76 is: 63,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,503.24 : 115,234.32 = 45,777.76 : x
  2. Step 2: Convert to fraction form
    83,503.24/115,234.32 = 45,777.76/x
  3. Step 3: Cross multiply
    83,503.24x = 115,234.32 × 45,777.76
  4. Step 4: Simplify right side
    83,503.24x = 5,275,169,044.72
  5. Step 5: Solve for x
    x = 5,275,169,044.72/83,503.24
  6. Step 6: Final answer
    x = 63,173.23

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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.