Home / 38,556.10-57,920.55-36,981.70

Finding the Fourth Proportional to 38,556.10, 57,920.55 and 36,981.70

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Solution

The fourth proportional to 38,556.10, 57,920.55 and 36,981.70 is: 55,555.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,556.10 : 57,920.55 = 36,981.70 : x
  2. Step 2: Convert to fraction form
    38,556.10/57,920.55 = 36,981.70/x
  3. Step 3: Cross multiply
    38,556.10x = 57,920.55 × 36,981.70
  4. Step 4: Simplify right side
    38,556.10x = 2,142,000,403.94
  5. Step 5: Solve for x
    x = 2,142,000,403.94/38,556.10
  6. Step 6: Final answer
    x = 55,555.42

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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.