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Finding the Fourth Proportional to 68,854, 95,018.52 and 39,046

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Solution

The fourth proportional to 68,854, 95,018.52 and 39,046 is: 53,883.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,854 : 95,018.52 = 39,046 : x
  2. Step 2: Convert to fraction form
    68,854/95,018.52 = 39,046/x
  3. Step 3: Cross multiply
    68,854x = 95,018.52 × 39,046
  4. Step 4: Simplify right side
    68,854x = 3,710,093,131.92
  5. Step 5: Solve for x
    x = 3,710,093,131.92/68,854
  6. Step 6: Final answer
    x = 53,883.48

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Why These Related Problems?

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