Home / 91,031.97-136,518.43-34,869.09

Finding the Fourth Proportional to 91,031.97, 136,518.43 and 34,869.09

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Solution

The fourth proportional to 91,031.97, 136,518.43 and 34,869.09 is: 52,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,031.97 : 136,518.43 = 34,869.09 : x
  2. Step 2: Convert to fraction form
    91,031.97/136,518.43 = 34,869.09/x
  3. Step 3: Cross multiply
    91,031.97x = 136,518.43 × 34,869.09
  4. Step 4: Simplify right side
    91,031.97x = 4,760,273,422.33
  5. Step 5: Solve for x
    x = 4,760,273,422.33/91,031.97
  6. Step 6: Final answer
    x = 52,292.33

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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.