Home / 72,933.85-100,648.65-39,399.85

Finding the Fourth Proportional to 72,933.85, 100,648.65 and 39,399.85

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Solution

The fourth proportional to 72,933.85, 100,648.65 and 39,399.85 is: 54,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,933.85 : 100,648.65 = 39,399.85 : x
  2. Step 2: Convert to fraction form
    72,933.85/100,648.65 = 39,399.85/x
  3. Step 3: Cross multiply
    72,933.85x = 100,648.65 × 39,399.85
  4. Step 4: Simplify right side
    72,933.85x = 3,965,541,712.70
  5. Step 5: Solve for x
    x = 3,965,541,712.70/72,933.85
  6. Step 6: Final answer
    x = 54,371.76

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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.