Home / 71,799.12-99,108.36-51,667.92

Finding the Fourth Proportional to 71,799.12, 99,108.36 and 51,667.92

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Solution

The fourth proportional to 71,799.12, 99,108.36 and 51,667.92 is: 71,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,799.12 : 99,108.36 = 51,667.92 : x
  2. Step 2: Convert to fraction form
    71,799.12/99,108.36 = 51,667.92/x
  3. Step 3: Cross multiply
    71,799.12x = 99,108.36 × 51,667.92
  4. Step 4: Simplify right side
    71,799.12x = 5,120,722,815.81
  5. Step 5: Solve for x
    x = 5,120,722,815.81/71,799.12
  6. Step 6: Final answer
    x = 71,320.13

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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.