Home / 55,761.72-76,950.26-31,890.60

Finding the Fourth Proportional to 55,761.72, 76,950.26 and 31,890.60

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Solution

The fourth proportional to 55,761.72, 76,950.26 and 31,890.60 is: 44,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,761.72 : 76,950.26 = 31,890.60 : x
  2. Step 2: Convert to fraction form
    55,761.72/76,950.26 = 31,890.60/x
  3. Step 3: Cross multiply
    55,761.72x = 76,950.26 × 31,890.60
  4. Step 4: Simplify right side
    55,761.72x = 2,453,989,961.56
  5. Step 5: Solve for x
    x = 2,453,989,961.56/55,761.72
  6. Step 6: Final answer
    x = 44,008.51

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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.