Home / 68,979.52-102,865.64-68,348.94

Finding the Fourth Proportional to 68,979.52, 102,865.64 and 68,348.94

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Solution

The fourth proportional to 68,979.52, 102,865.64 and 68,348.94 is: 101,925.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,979.52 : 102,865.64 = 68,348.94 : x
  2. Step 2: Convert to fraction form
    68,979.52/102,865.64 = 68,348.94/x
  3. Step 3: Cross multiply
    68,979.52x = 102,865.64 × 68,348.94
  4. Step 4: Simplify right side
    68,979.52x = 7,030,757,456.42
  5. Step 5: Solve for x
    x = 7,030,757,456.42/68,979.52
  6. Step 6: Final answer
    x = 101,925.29

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.