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Finding the Fourth Proportional to 95,379, 143,033.94 and 42,761.40

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Solution

The fourth proportional to 95,379, 143,033.94 and 42,761.40 is: 64,126.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,379 : 143,033.94 = 42,761.40 : x
  2. Step 2: Convert to fraction form
    95,379/143,033.94 = 42,761.40/x
  3. Step 3: Cross multiply
    95,379x = 143,033.94 × 42,761.40
  4. Step 4: Simplify right side
    95,379x = 6,116,331,521.92
  5. Step 5: Solve for x
    x = 6,116,331,521.92/95,379
  6. Step 6: Final answer
    x = 64,126.61

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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.