Home / 53,422.30-80,140.65-18,372.70

Finding the Fourth Proportional to 53,422.30, 80,140.65 and 18,372.70

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Solution

The fourth proportional to 53,422.30, 80,140.65 and 18,372.70 is: 27,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,422.30 : 80,140.65 = 18,372.70 : x
  2. Step 2: Convert to fraction form
    53,422.30/80,140.65 = 18,372.70/x
  3. Step 3: Cross multiply
    53,422.30x = 80,140.65 × 18,372.70
  4. Step 4: Simplify right side
    53,422.30x = 1,472,400,120.26
  5. Step 5: Solve for x
    x = 1,472,400,120.26/53,422.30
  6. Step 6: Final answer
    x = 27,561.53

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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.