Home / 53,874.56-80,831.28-18,819.36

Finding the Fourth Proportional to 53,874.56, 80,831.28 and 18,819.36

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Solution

The fourth proportional to 53,874.56, 80,831.28 and 18,819.36 is: 28,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,874.56 : 80,831.28 = 18,819.36 : x
  2. Step 2: Convert to fraction form
    53,874.56/80,831.28 = 18,819.36/x
  3. Step 3: Cross multiply
    53,874.56x = 80,831.28 × 18,819.36
  4. Step 4: Simplify right side
    53,874.56x = 1,521,192,957.58
  5. Step 5: Solve for x
    x = 1,521,192,957.58/53,874.56
  6. Step 6: Final answer
    x = 28,235.83

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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.