Home / 56,708.31-78,257.97-31,557.81

Finding the Fourth Proportional to 56,708.31, 78,257.97 and 31,557.81

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Solution

The fourth proportional to 56,708.31, 78,257.97 and 31,557.81 is: 43,550.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,708.31 : 78,257.97 = 31,557.81 : x
  2. Step 2: Convert to fraction form
    56,708.31/78,257.97 = 31,557.81/x
  3. Step 3: Cross multiply
    56,708.31x = 78,257.97 × 31,557.81
  4. Step 4: Simplify right side
    56,708.31x = 2,469,650,148.25
  5. Step 5: Solve for x
    x = 2,469,650,148.25/56,708.31
  6. Step 6: Final answer
    x = 43,550.06

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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.