Home / 53,445.64-80,179.92-19,711.78

Finding the Fourth Proportional to 53,445.64, 80,179.92 and 19,711.78

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Solution

The fourth proportional to 53,445.64, 80,179.92 and 19,711.78 is: 29,571.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,445.64 : 80,179.92 = 19,711.78 : x
  2. Step 2: Convert to fraction form
    53,445.64/80,179.92 = 19,711.78/x
  3. Step 3: Cross multiply
    53,445.64x = 80,179.92 × 19,711.78
  4. Step 4: Simplify right side
    53,445.64x = 1,580,488,943.46
  5. Step 5: Solve for x
    x = 1,580,488,943.46/53,445.64
  6. Step 6: Final answer
    x = 29,571.90

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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.