Home / 96,979.84-145,469.92-30,425.21

Finding the Fourth Proportional to 96,979.84, 145,469.92 and 30,425.21

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Solution

The fourth proportional to 96,979.84, 145,469.92 and 30,425.21 is: 45,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,979.84 : 145,469.92 = 30,425.21 : x
  2. Step 2: Convert to fraction form
    96,979.84/145,469.92 = 30,425.21/x
  3. Step 3: Cross multiply
    96,979.84x = 145,469.92 × 30,425.21
  4. Step 4: Simplify right side
    96,979.84x = 4,425,952,864.68
  5. Step 5: Solve for x
    x = 4,425,952,864.68/96,979.84
  6. Step 6: Final answer
    x = 45,637.87

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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.