Home / 97,979.30-135,240.16-63,993.12

Finding the Fourth Proportional to 97,979.30, 135,240.16 and 63,993.12

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Solution

The fourth proportional to 97,979.30, 135,240.16 and 63,993.12 is: 88,329.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,979.30 : 135,240.16 = 63,993.12 : x
  2. Step 2: Convert to fraction form
    97,979.30/135,240.16 = 63,993.12/x
  3. Step 3: Cross multiply
    97,979.30x = 135,240.16 × 63,993.12
  4. Step 4: Simplify right side
    97,979.30x = 8,654,439,787.70
  5. Step 5: Solve for x
    x = 8,654,439,787.70/97,979.30
  6. Step 6: Final answer
    x = 88,329.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.