Home / 45,119.61-67,642.92-18,844.02

Finding the Fourth Proportional to 45,119.61, 67,642.92 and 18,844.02

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Solution

The fourth proportional to 45,119.61, 67,642.92 and 18,844.02 is: 28,250.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,119.61 : 67,642.92 = 18,844.02 : x
  2. Step 2: Convert to fraction form
    45,119.61/67,642.92 = 18,844.02/x
  3. Step 3: Cross multiply
    45,119.61x = 67,642.92 × 18,844.02
  4. Step 4: Simplify right side
    45,119.61x = 1,274,664,537.34
  5. Step 5: Solve for x
    x = 1,274,664,537.34/45,119.61
  6. Step 6: Final answer
    x = 28,250.79

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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.