Home / 91,137.72-136,731.96-27,959.91

Finding the Fourth Proportional to 91,137.72, 136,731.96 and 27,959.91

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Solution

The fourth proportional to 91,137.72, 136,731.96 and 27,959.91 is: 41,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,137.72 : 136,731.96 = 27,959.91 : x
  2. Step 2: Convert to fraction form
    91,137.72/136,731.96 = 27,959.91/x
  3. Step 3: Cross multiply
    91,137.72x = 136,731.96 × 27,959.91
  4. Step 4: Simplify right side
    91,137.72x = 3,823,013,295.72
  5. Step 5: Solve for x
    x = 3,823,013,295.72/91,137.72
  6. Step 6: Final answer
    x = 41,947.65

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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.