Home / 53,490.83-80,179.34-20,196.72

Finding the Fourth Proportional to 53,490.83, 80,179.34 and 20,196.72

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Solution

The fourth proportional to 53,490.83, 80,179.34 and 20,196.72 is: 30,273.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,490.83 : 80,179.34 = 20,196.72 : x
  2. Step 2: Convert to fraction form
    53,490.83/80,179.34 = 20,196.72/x
  3. Step 3: Cross multiply
    53,490.83x = 80,179.34 × 20,196.72
  4. Step 4: Simplify right side
    53,490.83x = 1,619,359,578.78
  5. Step 5: Solve for x
    x = 1,619,359,578.78/53,490.83
  6. Step 6: Final answer
    x = 30,273.60

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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.