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Finding the Fourth Proportional to 92,814.38, 128,083.78 and 50,372.95

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Solution

The fourth proportional to 92,814.38, 128,083.78 and 50,372.95 is: 69,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,814.38 : 128,083.78 = 50,372.95 : x
  2. Step 2: Convert to fraction form
    92,814.38/128,083.78 = 50,372.95/x
  3. Step 3: Cross multiply
    92,814.38x = 128,083.78 × 50,372.95
  4. Step 4: Simplify right side
    92,814.38x = 6,451,956,953.47
  5. Step 5: Solve for x
    x = 6,451,956,953.47/92,814.38
  6. Step 6: Final answer
    x = 69,514.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.