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Finding the Fourth Proportional to 56,271.96, 84,390.92 and 18,822.42

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Solution

The fourth proportional to 56,271.96, 84,390.92 and 18,822.42 is: 28,227.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,271.96 : 84,390.92 = 18,822.42 : x
  2. Step 2: Convert to fraction form
    56,271.96/84,390.92 = 18,822.42/x
  3. Step 3: Cross multiply
    56,271.96x = 84,390.92 × 18,822.42
  4. Step 4: Simplify right side
    56,271.96x = 1,588,441,340.43
  5. Step 5: Solve for x
    x = 1,588,441,340.43/56,271.96
  6. Step 6: Final answer
    x = 28,227.94

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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.