Home / 65,531.76-98,284.68-18,789.36

Finding the Fourth Proportional to 65,531.76, 98,284.68 and 18,789.36

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Solution

The fourth proportional to 65,531.76, 98,284.68 and 18,789.36 is: 28,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,531.76 : 98,284.68 = 18,789.36 : x
  2. Step 2: Convert to fraction form
    65,531.76/98,284.68 = 18,789.36/x
  3. Step 3: Cross multiply
    65,531.76x = 98,284.68 × 18,789.36
  4. Step 4: Simplify right side
    65,531.76x = 1,846,706,235.00
  5. Step 5: Solve for x
    x = 1,846,706,235.00/65,531.76
  6. Step 6: Final answer
    x = 28,180.32

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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.