Home / 86,617.52-129,933-27,456.56

Finding the Fourth Proportional to 86,617.52, 129,933 and 27,456.56

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Solution

The fourth proportional to 86,617.52, 129,933 and 27,456.56 is: 41,186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,617.52 : 129,933 = 27,456.56 : x
  2. Step 2: Convert to fraction form
    86,617.52/129,933 = 27,456.56/x
  3. Step 3: Cross multiply
    86,617.52x = 129,933 × 27,456.56
  4. Step 4: Simplify right side
    86,617.52x = 3,567,513,210.48
  5. Step 5: Solve for x
    x = 3,567,513,210.48/86,617.52
  6. Step 6: Final answer
    x = 41,186.97

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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.