Home / 91,078.43-136,626.75-27,897.82

Finding the Fourth Proportional to 91,078.43, 136,626.75 and 27,897.82

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Solution

The fourth proportional to 91,078.43, 136,626.75 and 27,897.82 is: 41,849.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,078.43 : 136,626.75 = 27,897.82 : x
  2. Step 2: Convert to fraction form
    91,078.43/136,626.75 = 27,897.82/x
  3. Step 3: Cross multiply
    91,078.43x = 136,626.75 × 27,897.82
  4. Step 4: Simplify right side
    91,078.43x = 3,811,588,137.12
  5. Step 5: Solve for x
    x = 3,811,588,137.12/91,078.43
  6. Step 6: Final answer
    x = 41,849.52

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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.