Home / 68,831.13-103,284.30-26,712.87

Finding the Fourth Proportional to 68,831.13, 103,284.30 and 26,712.87

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Solution

The fourth proportional to 68,831.13, 103,284.30 and 26,712.87 is: 40,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,831.13 : 103,284.30 = 26,712.87 : x
  2. Step 2: Convert to fraction form
    68,831.13/103,284.30 = 26,712.87/x
  3. Step 3: Cross multiply
    68,831.13x = 103,284.30 × 26,712.87
  4. Step 4: Simplify right side
    68,831.13x = 2,759,020,078.94
  5. Step 5: Solve for x
    x = 2,759,020,078.94/68,831.13
  6. Step 6: Final answer
    x = 40,083.90

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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.