Home / 86,189.72-129,207.80-33,587.24

Finding the Fourth Proportional to 86,189.72, 129,207.80 and 33,587.24

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Solution

The fourth proportional to 86,189.72, 129,207.80 and 33,587.24 is: 50,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,189.72 : 129,207.80 = 33,587.24 : x
  2. Step 2: Convert to fraction form
    86,189.72/129,207.80 = 33,587.24/x
  3. Step 3: Cross multiply
    86,189.72x = 129,207.80 × 33,587.24
  4. Step 4: Simplify right side
    86,189.72x = 4,339,733,388.47
  5. Step 5: Solve for x
    x = 4,339,733,388.47/86,189.72
  6. Step 6: Final answer
    x = 50,350.94

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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.