Home / 91,124.22-136,687.26-31,961.34

Finding the Fourth Proportional to 91,124.22, 136,687.26 and 31,961.34

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Solution

The fourth proportional to 91,124.22, 136,687.26 and 31,961.34 is: 47,942.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,124.22 : 136,687.26 = 31,961.34 : x
  2. Step 2: Convert to fraction form
    91,124.22/136,687.26 = 31,961.34/x
  3. Step 3: Cross multiply
    91,124.22x = 136,687.26 × 31,961.34
  4. Step 4: Simplify right side
    91,124.22x = 4,368,707,990.53
  5. Step 5: Solve for x
    x = 4,368,707,990.53/91,124.22
  6. Step 6: Final answer
    x = 47,942.34

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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.