Home / 72,922.57-109,383.89-17,518.57

Finding the Fourth Proportional to 72,922.57, 109,383.89 and 17,518.57

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Solution

The fourth proportional to 72,922.57, 109,383.89 and 17,518.57 is: 26,277.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,922.57 : 109,383.89 = 17,518.57 : x
  2. Step 2: Convert to fraction form
    72,922.57/109,383.89 = 17,518.57/x
  3. Step 3: Cross multiply
    72,922.57x = 109,383.89 × 17,518.57
  4. Step 4: Simplify right side
    72,922.57x = 1,916,248,972.78
  5. Step 5: Solve for x
    x = 1,916,248,972.78/72,922.57
  6. Step 6: Final answer
    x = 26,277.86

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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.