Home / 56,893.26-78,512.12-31,399.86

Finding the Fourth Proportional to 56,893.26, 78,512.12 and 31,399.86

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Solution

The fourth proportional to 56,893.26, 78,512.12 and 31,399.86 is: 43,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893.26 : 78,512.12 = 31,399.86 : x
  2. Step 2: Convert to fraction form
    56,893.26/78,512.12 = 31,399.86/x
  3. Step 3: Cross multiply
    56,893.26x = 78,512.12 × 31,399.86
  4. Step 4: Simplify right side
    56,893.26x = 2,465,269,576.30
  5. Step 5: Solve for x
    x = 2,465,269,576.30/56,893.26
  6. Step 6: Final answer
    x = 43,331.49

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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.