Home / 86,349.87-129,513.47-27,185.85

Finding the Fourth Proportional to 86,349.87, 129,513.47 and 27,185.85

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Solution

The fourth proportional to 86,349.87, 129,513.47 and 27,185.85 is: 40,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,349.87 : 129,513.47 = 27,185.85 : x
  2. Step 2: Convert to fraction form
    86,349.87/129,513.47 = 27,185.85/x
  3. Step 3: Cross multiply
    86,349.87x = 129,513.47 × 27,185.85
  4. Step 4: Simplify right side
    86,349.87x = 3,520,933,632.47
  5. Step 5: Solve for x
    x = 3,520,933,632.47/86,349.87
  6. Step 6: Final answer
    x = 40,775.20

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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.