Home / 45,018.72-67,527.81-18,375.66

Finding the Fourth Proportional to 45,018.72, 67,527.81 and 18,375.66

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Solution

The fourth proportional to 45,018.72, 67,527.81 and 18,375.66 is: 27,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,018.72 : 67,527.81 = 18,375.66 : x
  2. Step 2: Convert to fraction form
    45,018.72/67,527.81 = 18,375.66/x
  3. Step 3: Cross multiply
    45,018.72x = 67,527.81 × 18,375.66
  4. Step 4: Simplify right side
    45,018.72x = 1,240,868,077.10
  5. Step 5: Solve for x
    x = 1,240,868,077.10/45,018.72
  6. Step 6: Final answer
    x = 27,563.38

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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.