Home / 72,948.97-109,433.03-28,569.96

Finding the Fourth Proportional to 72,948.97, 109,433.03 and 28,569.96

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Solution

The fourth proportional to 72,948.97, 109,433.03 and 28,569.96 is: 42,858.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,948.97 : 109,433.03 = 28,569.96 : x
  2. Step 2: Convert to fraction form
    72,948.97/109,433.03 = 28,569.96/x
  3. Step 3: Cross multiply
    72,948.97x = 109,433.03 × 28,569.96
  4. Step 4: Simplify right side
    72,948.97x = 3,126,496,736.56
  5. Step 5: Solve for x
    x = 3,126,496,736.56/72,948.97
  6. Step 6: Final answer
    x = 42,858.68

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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.