Home / 91,849.34-137,645.70-49,638.42

Finding the Fourth Proportional to 91,849.34, 137,645.70 and 49,638.42

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Solution

The fourth proportional to 91,849.34, 137,645.70 and 49,638.42 is: 74,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,849.34 : 137,645.70 = 49,638.42 : x
  2. Step 2: Convert to fraction form
    91,849.34/137,645.70 = 49,638.42/x
  3. Step 3: Cross multiply
    91,849.34x = 137,645.70 × 49,638.42
  4. Step 4: Simplify right side
    91,849.34x = 6,832,515,067.79
  5. Step 5: Solve for x
    x = 6,832,515,067.79/91,849.34
  6. Step 6: Final answer
    x = 74,388.29

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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.