Home / 57,004.18-78,666.03-31,163.26

Finding the Fourth Proportional to 57,004.18, 78,666.03 and 31,163.26

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Solution

The fourth proportional to 57,004.18, 78,666.03 and 31,163.26 is: 43,005.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,004.18 : 78,666.03 = 31,163.26 : x
  2. Step 2: Convert to fraction form
    57,004.18/78,666.03 = 31,163.26/x
  3. Step 3: Cross multiply
    57,004.18x = 78,666.03 × 31,163.26
  4. Step 4: Simplify right side
    57,004.18x = 2,451,489,946.06
  5. Step 5: Solve for x
    x = 2,451,489,946.06/57,004.18
  6. Step 6: Final answer
    x = 43,005.44

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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.