Home / 56,196.42-84,286.13-21,127.88

Finding the Fourth Proportional to 56,196.42, 84,286.13 and 21,127.88

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Solution

The fourth proportional to 56,196.42, 84,286.13 and 21,127.88 is: 31,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,196.42 : 84,286.13 = 21,127.88 : x
  2. Step 2: Convert to fraction form
    56,196.42/84,286.13 = 21,127.88/x
  3. Step 3: Cross multiply
    56,196.42x = 84,286.13 × 21,127.88
  4. Step 4: Simplify right side
    56,196.42x = 1,780,786,713.23
  5. Step 5: Solve for x
    x = 1,780,786,713.23/56,196.42
  6. Step 6: Final answer
    x = 31,688.61

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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.