Home / 90,963.14-136,459.29-38,380.37

Finding the Fourth Proportional to 90,963.14, 136,459.29 and 38,380.37

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Solution

The fourth proportional to 90,963.14, 136,459.29 and 38,380.37 is: 57,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,963.14 : 136,459.29 = 38,380.37 : x
  2. Step 2: Convert to fraction form
    90,963.14/136,459.29 = 38,380.37/x
  3. Step 3: Cross multiply
    90,963.14x = 136,459.29 × 38,380.37
  4. Step 4: Simplify right side
    90,963.14x = 5,237,357,869.56
  5. Step 5: Solve for x
    x = 5,237,357,869.56/90,963.14
  6. Step 6: Final answer
    x = 57,576.71

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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.