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Finding the Fourth Proportional to 55,389, 83,102.92 and 34,588.20

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Solution

The fourth proportional to 55,389, 83,102.92 and 34,588.20 is: 51,894.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389 : 83,102.92 = 34,588.20 : x
  2. Step 2: Convert to fraction form
    55,389/83,102.92 = 34,588.20/x
  3. Step 3: Cross multiply
    55,389x = 83,102.92 × 34,588.20
  4. Step 4: Simplify right side
    55,389x = 2,874,380,417.54
  5. Step 5: Solve for x
    x = 2,874,380,417.54/55,389
  6. Step 6: Final answer
    x = 51,894.43

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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.