Home / 55,221.12-76,202.82-31,347.36

Finding the Fourth Proportional to 55,221.12, 76,202.82 and 31,347.36

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Solution

The fourth proportional to 55,221.12, 76,202.82 and 31,347.36 is: 43,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,221.12 : 76,202.82 = 31,347.36 : x
  2. Step 2: Convert to fraction form
    55,221.12/76,202.82 = 31,347.36/x
  3. Step 3: Cross multiply
    55,221.12x = 76,202.82 × 31,347.36
  4. Step 4: Simplify right side
    55,221.12x = 2,388,757,231.56
  5. Step 5: Solve for x
    x = 2,388,757,231.56/55,221.12
  6. Step 6: Final answer
    x = 43,258.04

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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.