Home / 57,145.19-78,865.11-33,270.44

Finding the Fourth Proportional to 57,145.19, 78,865.11 and 33,270.44

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Solution

The fourth proportional to 57,145.19, 78,865.11 and 33,270.44 is: 45,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,145.19 : 78,865.11 = 33,270.44 : x
  2. Step 2: Convert to fraction form
    57,145.19/78,865.11 = 33,270.44/x
  3. Step 3: Cross multiply
    57,145.19x = 78,865.11 × 33,270.44
  4. Step 4: Simplify right side
    57,145.19x = 2,623,876,516.02
  5. Step 5: Solve for x
    x = 2,623,876,516.02/57,145.19
  6. Step 6: Final answer
    x = 45,915.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.