Home / 56,843.76-78,443.32-31,352.50

Finding the Fourth Proportional to 56,843.76, 78,443.32 and 31,352.50

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Solution

The fourth proportional to 56,843.76, 78,443.32 and 31,352.50 is: 43,265.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,843.76 : 78,443.32 = 31,352.50 : x
  2. Step 2: Convert to fraction form
    56,843.76/78,443.32 = 31,352.50/x
  3. Step 3: Cross multiply
    56,843.76x = 78,443.32 × 31,352.50
  4. Step 4: Simplify right side
    56,843.76x = 2,459,394,190.30
  5. Step 5: Solve for x
    x = 2,459,394,190.30/56,843.76
  6. Step 6: Final answer
    x = 43,265.86

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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.