Home / 56,431.22-84,620.30-20,867.96

Finding the Fourth Proportional to 56,431.22, 84,620.30 and 20,867.96

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Solution

The fourth proportional to 56,431.22, 84,620.30 and 20,867.96 is: 31,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,431.22 : 84,620.30 = 20,867.96 : x
  2. Step 2: Convert to fraction form
    56,431.22/84,620.30 = 20,867.96/x
  3. Step 3: Cross multiply
    56,431.22x = 84,620.30 × 20,867.96
  4. Step 4: Simplify right side
    56,431.22x = 1,765,853,142.80
  5. Step 5: Solve for x
    x = 1,765,853,142.80/56,431.22
  6. Step 6: Final answer
    x = 31,292.13

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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.