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Finding the Fourth Proportional to 27,068.62, 40,605.19 and 7,078.07

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Solution

The fourth proportional to 27,068.62, 40,605.19 and 7,078.07 is: 10,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,068.62 : 40,605.19 = 7,078.07 : x
  2. Step 2: Convert to fraction form
    27,068.62/40,605.19 = 7,078.07/x
  3. Step 3: Cross multiply
    27,068.62x = 40,605.19 × 7,078.07
  4. Step 4: Simplify right side
    27,068.62x = 287,406,377.18
  5. Step 5: Solve for x
    x = 287,406,377.18/27,068.62
  6. Step 6: Final answer
    x = 10,617.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.