Home / 91,611.96-137,370.51-54,183.48

Finding the Fourth Proportional to 91,611.96, 137,370.51 and 54,183.48

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Solution

The fourth proportional to 91,611.96, 137,370.51 and 54,183.48 is: 81,247.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,611.96 : 137,370.51 = 54,183.48 : x
  2. Step 2: Convert to fraction form
    91,611.96/137,370.51 = 54,183.48/x
  3. Step 3: Cross multiply
    91,611.96x = 137,370.51 × 54,183.48
  4. Step 4: Simplify right side
    91,611.96x = 7,443,212,281.17
  5. Step 5: Solve for x
    x = 7,443,212,281.17/91,611.96
  6. Step 6: Final answer
    x = 81,247.17

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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.