Home / 56,945.09-85,408.88-18,995.04

Finding the Fourth Proportional to 56,945.09, 85,408.88 and 18,995.04

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Solution

The fourth proportional to 56,945.09, 85,408.88 and 18,995.04 is: 28,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,945.09 : 85,408.88 = 18,995.04 : x
  2. Step 2: Convert to fraction form
    56,945.09/85,408.88 = 18,995.04/x
  3. Step 3: Cross multiply
    56,945.09x = 85,408.88 × 18,995.04
  4. Step 4: Simplify right side
    56,945.09x = 1,622,344,996.98
  5. Step 5: Solve for x
    x = 1,622,344,996.98/56,945.09
  6. Step 6: Final answer
    x = 28,489.64

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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.