Home / 86,635.68-129,958.16-27,475.84

Finding the Fourth Proportional to 86,635.68, 129,958.16 and 27,475.84

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Solution

The fourth proportional to 86,635.68, 129,958.16 and 27,475.84 is: 41,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,635.68 : 129,958.16 = 27,475.84 : x
  2. Step 2: Convert to fraction form
    86,635.68/129,958.16 = 27,475.84/x
  3. Step 3: Cross multiply
    86,635.68x = 129,958.16 × 27,475.84
  4. Step 4: Simplify right side
    86,635.68x = 3,570,709,610.85
  5. Step 5: Solve for x
    x = 3,570,709,610.85/86,635.68
  6. Step 6: Final answer
    x = 41,215.23

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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.