Home / 83,609.28-115,376.40-47,794.56

Finding the Fourth Proportional to 83,609.28, 115,376.40 and 47,794.56

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Solution

The fourth proportional to 83,609.28, 115,376.40 and 47,794.56 is: 65,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,609.28 : 115,376.40 = 47,794.56 : x
  2. Step 2: Convert to fraction form
    83,609.28/115,376.40 = 47,794.56/x
  3. Step 3: Cross multiply
    83,609.28x = 115,376.40 × 47,794.56
  4. Step 4: Simplify right side
    83,609.28x = 5,514,364,272.38
  5. Step 5: Solve for x
    x = 5,514,364,272.38/83,609.28
  6. Step 6: Final answer
    x = 65,953.97

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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.