Home / 84,669.30-126,831.69-54,997.38

Finding the Fourth Proportional to 84,669.30, 126,831.69 and 54,997.38

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Solution

The fourth proportional to 84,669.30, 126,831.69 and 54,997.38 is: 82,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,669.30 : 126,831.69 = 54,997.38 : x
  2. Step 2: Convert to fraction form
    84,669.30/126,831.69 = 54,997.38/x
  3. Step 3: Cross multiply
    84,669.30x = 126,831.69 × 54,997.38
  4. Step 4: Simplify right side
    84,669.30x = 6,975,410,650.97
  5. Step 5: Solve for x
    x = 6,975,410,650.97/84,669.30
  6. Step 6: Final answer
    x = 82,384.18

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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.