Home / 90,909.68-136,372.39-27,744.01

Finding the Fourth Proportional to 90,909.68, 136,372.39 and 27,744.01

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Solution

The fourth proportional to 90,909.68, 136,372.39 and 27,744.01 is: 41,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,909.68 : 136,372.39 = 27,744.01 : x
  2. Step 2: Convert to fraction form
    90,909.68/136,372.39 = 27,744.01/x
  3. Step 3: Cross multiply
    90,909.68x = 136,372.39 × 27,744.01
  4. Step 4: Simplify right side
    90,909.68x = 3,783,516,541.59
  5. Step 5: Solve for x
    x = 3,783,516,541.59/90,909.68
  6. Step 6: Final answer
    x = 41,618.41

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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.