Home / 55,028.30-75,939.82-31,154.46

Finding the Fourth Proportional to 55,028.30, 75,939.82 and 31,154.46

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Solution

The fourth proportional to 55,028.30, 75,939.82 and 31,154.46 is: 42,993.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,028.30 : 75,939.82 = 31,154.46 : x
  2. Step 2: Convert to fraction form
    55,028.30/75,939.82 = 31,154.46/x
  3. Step 3: Cross multiply
    55,028.30x = 75,939.82 × 31,154.46
  4. Step 4: Simplify right side
    55,028.30x = 2,365,864,084.60
  5. Step 5: Solve for x
    x = 2,365,864,084.60/55,028.30
  6. Step 6: Final answer
    x = 42,993.59

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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.