Home / 53,669.50-80,472.62-20,391.93

Finding the Fourth Proportional to 53,669.50, 80,472.62 and 20,391.93

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Solution

The fourth proportional to 53,669.50, 80,472.62 and 20,391.93 is: 30,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,669.50 : 80,472.62 = 20,391.93 : x
  2. Step 2: Convert to fraction form
    53,669.50/80,472.62 = 20,391.93/x
  3. Step 3: Cross multiply
    53,669.50x = 80,472.62 × 20,391.93
  4. Step 4: Simplify right side
    53,669.50x = 1,640,992,084.94
  5. Step 5: Solve for x
    x = 1,640,992,084.94/53,669.50
  6. Step 6: Final answer
    x = 30,575.88

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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.