Home / 55,539.38-76,644.34-30,388.88

Finding the Fourth Proportional to 55,539.38, 76,644.34 and 30,388.88

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Solution

The fourth proportional to 55,539.38, 76,644.34 and 30,388.88 is: 41,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,539.38 : 76,644.34 = 30,388.88 : x
  2. Step 2: Convert to fraction form
    55,539.38/76,644.34 = 30,388.88/x
  3. Step 3: Cross multiply
    55,539.38x = 76,644.34 × 30,388.88
  4. Step 4: Simplify right side
    55,539.38x = 2,329,135,191.75
  5. Step 5: Solve for x
    x = 2,329,135,191.75/55,539.38
  6. Step 6: Final answer
    x = 41,936.65

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1.5x scale

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.