Home / 83,336.28-115,001.20-45,609.72

Finding the Fourth Proportional to 83,336.28, 115,001.20 and 45,609.72

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Solution

The fourth proportional to 83,336.28, 115,001.20 and 45,609.72 is: 62,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,336.28 : 115,001.20 = 45,609.72 : x
  2. Step 2: Convert to fraction form
    83,336.28/115,001.20 = 45,609.72/x
  3. Step 3: Cross multiply
    83,336.28x = 115,001.20 × 45,609.72
  4. Step 4: Simplify right side
    83,336.28x = 5,245,172,531.66
  5. Step 5: Solve for x
    x = 5,245,172,531.66/83,336.28
  6. Step 6: Final answer
    x = 62,939.84

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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.