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Finding the Fourth Proportional to 86,716.96, 130,086.48 and 27,531.52

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Solution

The fourth proportional to 86,716.96, 130,086.48 and 27,531.52 is: 41,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,716.96 : 130,086.48 = 27,531.52 : x
  2. Step 2: Convert to fraction form
    86,716.96/130,086.48 = 27,531.52/x
  3. Step 3: Cross multiply
    86,716.96x = 130,086.48 × 27,531.52
  4. Step 4: Simplify right side
    86,716.96x = 3,581,478,525.85
  5. Step 5: Solve for x
    x = 3,581,478,525.85/86,716.96
  6. Step 6: Final answer
    x = 41,300.79

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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.