Home / 55,640.35-83,425.40-30,697.78

Finding the Fourth Proportional to 55,640.35, 83,425.40 and 30,697.78

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Solution

The fourth proportional to 55,640.35, 83,425.40 and 30,697.78 is: 46,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,640.35 : 83,425.40 = 30,697.78 : x
  2. Step 2: Convert to fraction form
    55,640.35/83,425.40 = 30,697.78/x
  3. Step 3: Cross multiply
    55,640.35x = 83,425.40 × 30,697.78
  4. Step 4: Simplify right side
    55,640.35x = 2,560,975,003.57
  5. Step 5: Solve for x
    x = 2,560,975,003.57/55,640.35
  6. Step 6: Final answer
    x = 46,027.30

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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.