Home / 56,735.19-78,293.90-31,241.03

Finding the Fourth Proportional to 56,735.19, 78,293.90 and 31,241.03

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Solution

The fourth proportional to 56,735.19, 78,293.90 and 31,241.03 is: 43,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,735.19 : 78,293.90 = 31,241.03 : x
  2. Step 2: Convert to fraction form
    56,735.19/78,293.90 = 31,241.03/x
  3. Step 3: Cross multiply
    56,735.19x = 78,293.90 × 31,241.03
  4. Step 4: Simplify right side
    56,735.19x = 2,445,981,765.35
  5. Step 5: Solve for x
    x = 2,445,981,765.35/56,735.19
  6. Step 6: Final answer
    x = 43,112.25

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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.