Home / 53,822.40-80,707.68-18,761.28

Finding the Fourth Proportional to 53,822.40, 80,707.68 and 18,761.28

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Solution

The fourth proportional to 53,822.40, 80,707.68 and 18,761.28 is: 28,132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,822.40 : 80,707.68 = 18,761.28 : x
  2. Step 2: Convert to fraction form
    53,822.40/80,707.68 = 18,761.28/x
  3. Step 3: Cross multiply
    53,822.40x = 80,707.68 × 18,761.28
  4. Step 4: Simplify right side
    53,822.40x = 1,514,179,382.63
  5. Step 5: Solve for x
    x = 1,514,179,382.63/53,822.40
  6. Step 6: Final answer
    x = 28,132.88

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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.