Home / 53,590.65-80,391.11-20,301.78

Finding the Fourth Proportional to 53,590.65, 80,391.11 and 20,301.78

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Solution

The fourth proportional to 53,590.65, 80,391.11 and 20,301.78 is: 30,454.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,590.65 : 80,391.11 = 20,301.78 : x
  2. Step 2: Convert to fraction form
    53,590.65/80,391.11 = 20,301.78/x
  3. Step 3: Cross multiply
    53,590.65x = 80,391.11 × 20,301.78
  4. Step 4: Simplify right side
    53,590.65x = 1,632,082,527.67
  5. Step 5: Solve for x
    x = 1,632,082,527.67/53,590.65
  6. Step 6: Final answer
    x = 30,454.61

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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.