Home / 56,665.35-78,197.75-31,171.17

Finding the Fourth Proportional to 56,665.35, 78,197.75 and 31,171.17

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Solution

The fourth proportional to 56,665.35, 78,197.75 and 31,171.17 is: 43,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,665.35 : 78,197.75 = 31,171.17 : x
  2. Step 2: Convert to fraction form
    56,665.35/78,197.75 = 31,171.17/x
  3. Step 3: Cross multiply
    56,665.35x = 78,197.75 × 31,171.17
  4. Step 4: Simplify right side
    56,665.35x = 2,437,515,241.30
  5. Step 5: Solve for x
    x = 2,437,515,241.30/56,665.35
  6. Step 6: Final answer
    x = 43,015.97

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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.