Home / 91,013.36-136,581.56-31,849.56

Finding the Fourth Proportional to 91,013.36, 136,581.56 and 31,849.56

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Solution

The fourth proportional to 91,013.36, 136,581.56 and 31,849.56 is: 47,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,013.36 : 136,581.56 = 31,849.56 : x
  2. Step 2: Convert to fraction form
    91,013.36/136,581.56 = 31,849.56/x
  3. Step 3: Cross multiply
    91,013.36x = 136,581.56 × 31,849.56
  4. Step 4: Simplify right side
    91,013.36x = 4,350,062,590.11
  5. Step 5: Solve for x
    x = 4,350,062,590.11/91,013.36
  6. Step 6: Final answer
    x = 47,795.87

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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.