Home / 90,713.05-136,022.69-40,750.43

Finding the Fourth Proportional to 90,713.05, 136,022.69 and 40,750.43

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Solution

The fourth proportional to 90,713.05, 136,022.69 and 40,750.43 is: 61,104.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,713.05 : 136,022.69 = 40,750.43 : x
  2. Step 2: Convert to fraction form
    90,713.05/136,022.69 = 40,750.43/x
  3. Step 3: Cross multiply
    90,713.05x = 136,022.69 × 40,750.43
  4. Step 4: Simplify right side
    90,713.05x = 5,542,982,529.02
  5. Step 5: Solve for x
    x = 5,542,982,529.02/90,713.05
  6. Step 6: Final answer
    x = 61,104.58

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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.