Home / 91,611.46-137,369.76-54,182.98

Finding the Fourth Proportional to 91,611.46, 137,369.76 and 54,182.98

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Solution

The fourth proportional to 91,611.46, 137,369.76 and 54,182.98 is: 81,246.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,611.46 : 137,369.76 = 54,182.98 : x
  2. Step 2: Convert to fraction form
    91,611.46/137,369.76 = 54,182.98/x
  3. Step 3: Cross multiply
    91,611.46x = 137,369.76 × 54,182.98
  4. Step 4: Simplify right side
    91,611.46x = 7,443,102,958.68
  5. Step 5: Solve for x
    x = 7,443,102,958.68/91,611.46
  6. Step 6: Final answer
    x = 81,246.42

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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.