Home / 86,416.72-129,624.92-33,789.29

Finding the Fourth Proportional to 86,416.72, 129,624.92 and 33,789.29

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Solution

The fourth proportional to 86,416.72, 129,624.92 and 33,789.29 is: 50,683.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,416.72 : 129,624.92 = 33,789.29 : x
  2. Step 2: Convert to fraction form
    86,416.72/129,624.92 = 33,789.29/x
  3. Step 3: Cross multiply
    86,416.72x = 129,624.92 × 33,789.29
  4. Step 4: Simplify right side
    86,416.72x = 4,379,934,168.22
  5. Step 5: Solve for x
    x = 4,379,934,168.22/86,416.72
  6. Step 6: Final answer
    x = 50,683.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.