Home / 90,647.20-135,953.79-38,057.14

Finding the Fourth Proportional to 90,647.20, 135,953.79 and 38,057.14

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Solution

The fourth proportional to 90,647.20, 135,953.79 and 38,057.14 is: 57,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,647.20 : 135,953.79 = 38,057.14 : x
  2. Step 2: Convert to fraction form
    90,647.20/135,953.79 = 38,057.14/x
  3. Step 3: Cross multiply
    90,647.20x = 135,953.79 × 38,057.14
  4. Step 4: Simplify right side
    90,647.20x = 5,174,012,419.56
  5. Step 5: Solve for x
    x = 5,174,012,419.56/90,647.20
  6. Step 6: Final answer
    x = 57,078.57

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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.