Home / 53,767.76-80,660.28-18,717.44

Finding the Fourth Proportional to 53,767.76, 80,660.28 and 18,717.44

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Solution

The fourth proportional to 53,767.76, 80,660.28 and 18,717.44 is: 28,079.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,767.76 : 80,660.28 = 18,717.44 : x
  2. Step 2: Convert to fraction form
    53,767.76/80,660.28 = 18,717.44/x
  3. Step 3: Cross multiply
    53,767.76x = 80,660.28 × 18,717.44
  4. Step 4: Simplify right side
    53,767.76x = 1,509,753,951.28
  5. Step 5: Solve for x
    x = 1,509,753,951.28/53,767.76
  6. Step 6: Final answer
    x = 28,079.17

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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.