Home / 45,179.68-67,747.31-18,518.45

Finding the Fourth Proportional to 45,179.68, 67,747.31 and 18,518.45

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Solution

The fourth proportional to 45,179.68, 67,747.31 and 18,518.45 is: 27,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,179.68 : 67,747.31 = 18,518.45 : x
  2. Step 2: Convert to fraction form
    45,179.68/67,747.31 = 18,518.45/x
  3. Step 3: Cross multiply
    45,179.68x = 67,747.31 × 18,518.45
  4. Step 4: Simplify right side
    45,179.68x = 1,254,574,932.46
  5. Step 5: Solve for x
    x = 1,254,574,932.46/45,179.68
  6. Step 6: Final answer
    x = 27,768.56

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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.