Home / 57,003.72-78,664.94-31,853.22

Finding the Fourth Proportional to 57,003.72, 78,664.94 and 31,853.22

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Solution

The fourth proportional to 57,003.72, 78,664.94 and 31,853.22 is: 43,957.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,003.72 : 78,664.94 = 31,853.22 : x
  2. Step 2: Convert to fraction form
    57,003.72/78,664.94 = 31,853.22/x
  3. Step 3: Cross multiply
    57,003.72x = 78,664.94 × 31,853.22
  4. Step 4: Simplify right side
    57,003.72x = 2,505,731,640.11
  5. Step 5: Solve for x
    x = 2,505,731,640.11/57,003.72
  6. Step 6: Final answer
    x = 43,957.34

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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.