Home / 56,261.46-84,375.18-18,811.92

Finding the Fourth Proportional to 56,261.46, 84,375.18 and 18,811.92

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Solution

The fourth proportional to 56,261.46, 84,375.18 and 18,811.92 is: 28,212.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,261.46 : 84,375.18 = 18,811.92 : x
  2. Step 2: Convert to fraction form
    56,261.46/84,375.18 = 18,811.92/x
  3. Step 3: Cross multiply
    56,261.46x = 84,375.18 × 18,811.92
  4. Step 4: Simplify right side
    56,261.46x = 1,587,259,136.15
  5. Step 5: Solve for x
    x = 1,587,259,136.15/56,261.46
  6. Step 6: Final answer
    x = 28,212.19

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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.