Home / 86,253.72-129,372.07-27,087.81

Finding the Fourth Proportional to 86,253.72, 129,372.07 and 27,087.81

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Solution

The fourth proportional to 86,253.72, 129,372.07 and 27,087.81 is: 40,629.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,253.72 : 129,372.07 = 27,087.81 : x
  2. Step 2: Convert to fraction form
    86,253.72/129,372.07 = 27,087.81/x
  3. Step 3: Cross multiply
    86,253.72x = 129,372.07 × 27,087.81
  4. Step 4: Simplify right side
    86,253.72x = 3,504,406,051.47
  5. Step 5: Solve for x
    x = 3,504,406,051.47/86,253.72
  6. Step 6: Final answer
    x = 40,629.04

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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.