Home / 56,757.31-78,298.75-36,620.61

Finding the Fourth Proportional to 56,757.31, 78,298.75 and 36,620.61

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Solution

The fourth proportional to 56,757.31, 78,298.75 and 36,620.61 is: 50,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,757.31 : 78,298.75 = 36,620.61 : x
  2. Step 2: Convert to fraction form
    56,757.31/78,298.75 = 36,620.61/x
  3. Step 3: Cross multiply
    56,757.31x = 78,298.75 × 36,620.61
  4. Step 4: Simplify right side
    56,757.31x = 2,867,347,739.39
  5. Step 5: Solve for x
    x = 2,867,347,739.39/56,757.31
  6. Step 6: Final answer
    x = 50,519.45

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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.