Home / 74,226.82-111,318.45-20,915.25

Finding the Fourth Proportional to 74,226.82, 111,318.45 and 20,915.25

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Solution

The fourth proportional to 74,226.82, 111,318.45 and 20,915.25 is: 31,366.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,226.82 : 111,318.45 = 20,915.25 : x
  2. Step 2: Convert to fraction form
    74,226.82/111,318.45 = 20,915.25/x
  3. Step 3: Cross multiply
    74,226.82x = 111,318.45 × 20,915.25
  4. Step 4: Simplify right side
    74,226.82x = 2,328,253,211.36
  5. Step 5: Solve for x
    x = 2,328,253,211.36/74,226.82
  6. Step 6: Final answer
    x = 31,366.74

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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.