Home / 68,789.52-103,173.64-28,267.13

Finding the Fourth Proportional to 68,789.52, 103,173.64 and 28,267.13

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Solution

The fourth proportional to 68,789.52, 103,173.64 and 28,267.13 is: 42,396.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,789.52 : 103,173.64 = 28,267.13 : x
  2. Step 2: Convert to fraction form
    68,789.52/103,173.64 = 28,267.13/x
  3. Step 3: Cross multiply
    68,789.52x = 103,173.64 × 28,267.13
  4. Step 4: Simplify right side
    68,789.52x = 2,916,422,881.72
  5. Step 5: Solve for x
    x = 2,916,422,881.72/68,789.52
  6. Step 6: Final answer
    x = 42,396.33

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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.