Home / 91,291.11-136,878.03-38,020.02

Finding the Fourth Proportional to 91,291.11, 136,878.03 and 38,020.02

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Solution

The fourth proportional to 91,291.11, 136,878.03 and 38,020.02 is: 57,005.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,291.11 : 136,878.03 = 38,020.02 : x
  2. Step 2: Convert to fraction form
    91,291.11/136,878.03 = 38,020.02/x
  3. Step 3: Cross multiply
    91,291.11x = 136,878.03 × 38,020.02
  4. Step 4: Simplify right side
    91,291.11x = 5,204,105,438.16
  5. Step 5: Solve for x
    x = 5,204,105,438.16/91,291.11
  6. Step 6: Final answer
    x = 57,005.61

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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.