Home / 57,768.96-86,666.40-20,832.96

Finding the Fourth Proportional to 57,768.96, 86,666.40 and 20,832.96

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Solution

The fourth proportional to 57,768.96, 86,666.40 and 20,832.96 is: 31,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,768.96 : 86,666.40 = 20,832.96 : x
  2. Step 2: Convert to fraction form
    57,768.96/86,666.40 = 20,832.96/x
  3. Step 3: Cross multiply
    57,768.96x = 86,666.40 × 20,832.96
  4. Step 4: Simplify right side
    57,768.96x = 1,805,517,644.54
  5. Step 5: Solve for x
    x = 1,805,517,644.54/57,768.96
  6. Step 6: Final answer
    x = 31,254.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.