Home / 55,564.68-76,679.28-30,414.72

Finding the Fourth Proportional to 55,564.68, 76,679.28 and 30,414.72

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Solution

The fourth proportional to 55,564.68, 76,679.28 and 30,414.72 is: 41,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,564.68 : 76,679.28 = 30,414.72 : x
  2. Step 2: Convert to fraction form
    55,564.68/76,679.28 = 30,414.72/x
  3. Step 3: Cross multiply
    55,564.68x = 76,679.28 × 30,414.72
  4. Step 4: Simplify right side
    55,564.68x = 2,332,178,831.00
  5. Step 5: Solve for x
    x = 2,332,178,831.00/55,564.68
  6. Step 6: Final answer
    x = 41,972.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.