Home / 51,378.49-77,058.82-18,090.73

Finding the Fourth Proportional to 51,378.49, 77,058.82 and 18,090.73

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Solution

The fourth proportional to 51,378.49, 77,058.82 and 18,090.73 is: 27,132.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,378.49 : 77,058.82 = 18,090.73 : x
  2. Step 2: Convert to fraction form
    51,378.49/77,058.82 = 18,090.73/x
  3. Step 3: Cross multiply
    51,378.49x = 77,058.82 × 18,090.73
  4. Step 4: Simplify right side
    51,378.49x = 1,394,050,306.74
  5. Step 5: Solve for x
    x = 1,394,050,306.74/51,378.49
  6. Step 6: Final answer
    x = 27,132.96

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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.