Home / 90,974.78-136,476.78-38,392.04

Finding the Fourth Proportional to 90,974.78, 136,476.78 and 38,392.04

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Solution

The fourth proportional to 90,974.78, 136,476.78 and 38,392.04 is: 57,594.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,974.78 : 136,476.78 = 38,392.04 : x
  2. Step 2: Convert to fraction form
    90,974.78/136,476.78 = 38,392.04/x
  3. Step 3: Cross multiply
    90,974.78x = 136,476.78 × 38,392.04
  4. Step 4: Simplify right side
    90,974.78x = 5,239,621,996.83
  5. Step 5: Solve for x
    x = 5,239,621,996.83/90,974.78
  6. Step 6: Final answer
    x = 57,594.23

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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.