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Finding the Fourth Proportional to 68,482.10, 94,514.67 and 39,409.86

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Solution

The fourth proportional to 68,482.10, 94,514.67 and 39,409.86 is: 54,391.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,482.10 : 94,514.67 = 39,409.86 : x
  2. Step 2: Convert to fraction form
    68,482.10/94,514.67 = 39,409.86/x
  3. Step 3: Cross multiply
    68,482.10x = 94,514.67 × 39,409.86
  4. Step 4: Simplify right side
    68,482.10x = 3,724,809,912.65
  5. Step 5: Solve for x
    x = 3,724,809,912.65/68,482.10
  6. Step 6: Final answer
    x = 54,391.00

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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.