Home / 56,665.89-78,200.64-31,170.96

Finding the Fourth Proportional to 56,665.89, 78,200.64 and 31,170.96

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Solution

The fourth proportional to 56,665.89, 78,200.64 and 31,170.96 is: 43,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,665.89 : 78,200.64 = 31,170.96 : x
  2. Step 2: Convert to fraction form
    56,665.89/78,200.64 = 31,170.96/x
  3. Step 3: Cross multiply
    56,665.89x = 78,200.64 × 31,170.96
  4. Step 4: Simplify right side
    56,665.89x = 2,437,589,021.41
  5. Step 5: Solve for x
    x = 2,437,589,021.41/56,665.89
  6. Step 6: Final answer
    x = 43,016.87

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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.