Home / 86,928.52-130,381.89-27,759.28

Finding the Fourth Proportional to 86,928.52, 130,381.89 and 27,759.28

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Solution

The fourth proportional to 86,928.52, 130,381.89 and 27,759.28 is: 41,635.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,928.52 : 130,381.89 = 27,759.28 : x
  2. Step 2: Convert to fraction form
    86,928.52/130,381.89 = 27,759.28/x
  3. Step 3: Cross multiply
    86,928.52x = 130,381.89 × 27,759.28
  4. Step 4: Simplify right side
    86,928.52x = 3,619,307,391.44
  5. Step 5: Solve for x
    x = 3,619,307,391.44/86,928.52
  6. Step 6: Final answer
    x = 41,635.44

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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.