Home / 74,979.15-112,426.20-30,553.89

Finding the Fourth Proportional to 74,979.15, 112,426.20 and 30,553.89

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Solution

The fourth proportional to 74,979.15, 112,426.20 and 30,553.89 is: 45,813.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,979.15 : 112,426.20 = 30,553.89 : x
  2. Step 2: Convert to fraction form
    74,979.15/112,426.20 = 30,553.89/x
  3. Step 3: Cross multiply
    74,979.15x = 112,426.20 × 30,553.89
  4. Step 4: Simplify right side
    74,979.15x = 3,435,057,747.92
  5. Step 5: Solve for x
    x = 3,435,057,747.92/74,979.15
  6. Step 6: Final answer
    x = 45,813.51

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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.