Home / 90,942.19-125,506.52-55,133.71

Finding the Fourth Proportional to 90,942.19, 125,506.52 and 55,133.71

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Solution

The fourth proportional to 90,942.19, 125,506.52 and 55,133.71 is: 76,088.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,942.19 : 125,506.52 = 55,133.71 : x
  2. Step 2: Convert to fraction form
    90,942.19/125,506.52 = 55,133.71/x
  3. Step 3: Cross multiply
    90,942.19x = 125,506.52 × 55,133.71
  4. Step 4: Simplify right side
    90,942.19x = 6,919,640,076.79
  5. Step 5: Solve for x
    x = 6,919,640,076.79/90,942.19
  6. Step 6: Final answer
    x = 76,088.34

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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.