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Finding the Fourth Proportional to 56,682.45, 84,977.12 and 38,863.89

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Solution

The fourth proportional to 56,682.45, 84,977.12 and 38,863.89 is: 58,263.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,682.45 : 84,977.12 = 38,863.89 : x
  2. Step 2: Convert to fraction form
    56,682.45/84,977.12 = 38,863.89/x
  3. Step 3: Cross multiply
    56,682.45x = 84,977.12 × 38,863.89
  4. Step 4: Simplify right side
    56,682.45x = 3,302,541,249.88
  5. Step 5: Solve for x
    x = 3,302,541,249.88/56,682.45
  6. Step 6: Final answer
    x = 58,263.91

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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.