Home / 90,816.17-136,229.39-27,638.36

Finding the Fourth Proportional to 90,816.17, 136,229.39 and 27,638.36

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Solution

The fourth proportional to 90,816.17, 136,229.39 and 27,638.36 is: 41,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,816.17 : 136,229.39 = 27,638.36 : x
  2. Step 2: Convert to fraction form
    90,816.17/136,229.39 = 27,638.36/x
  3. Step 3: Cross multiply
    90,816.17x = 136,229.39 × 27,638.36
  4. Step 4: Simplify right side
    90,816.17x = 3,765,156,104.06
  5. Step 5: Solve for x
    x = 3,765,156,104.06/90,816.17
  6. Step 6: Final answer
    x = 41,459.10

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1.5x scale

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.