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Finding the Fourth Proportional to 69,920, 96,482.41 and 39,288.23

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Solution

The fourth proportional to 69,920, 96,482.41 and 39,288.23 is: 54,213.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,920 : 96,482.41 = 39,288.23 : x
  2. Step 2: Convert to fraction form
    69,920/96,482.41 = 39,288.23/x
  3. Step 3: Cross multiply
    69,920x = 96,482.41 × 39,288.23
  4. Step 4: Simplify right side
    69,920x = 3,790,623,115.03
  5. Step 5: Solve for x
    x = 3,790,623,115.03/69,920
  6. Step 6: Final answer
    x = 54,213.72

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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.