Home / 89,942.30-134,915.28-30,845.90

Finding the Fourth Proportional to 89,942.30, 134,915.28 and 30,845.90

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Solution

The fourth proportional to 89,942.30, 134,915.28 and 30,845.90 is: 46,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,942.30 : 134,915.28 = 30,845.90 : x
  2. Step 2: Convert to fraction form
    89,942.30/134,915.28 = 30,845.90/x
  3. Step 3: Cross multiply
    89,942.30x = 134,915.28 × 30,845.90
  4. Step 4: Simplify right side
    89,942.30x = 4,161,583,235.35
  5. Step 5: Solve for x
    x = 4,161,583,235.35/89,942.30
  6. Step 6: Final answer
    x = 46,269.48

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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.