Home / 77,678.12-116,541.66-27,757.10

Finding the Fourth Proportional to 77,678.12, 116,541.66 and 27,757.10

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Solution

The fourth proportional to 77,678.12, 116,541.66 and 27,757.10 is: 41,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,678.12 : 116,541.66 = 27,757.10 : x
  2. Step 2: Convert to fraction form
    77,678.12/116,541.66 = 27,757.10/x
  3. Step 3: Cross multiply
    77,678.12x = 116,541.66 × 27,757.10
  4. Step 4: Simplify right side
    77,678.12x = 3,234,857,928.08
  5. Step 5: Solve for x
    x = 3,234,857,928.08/77,678.12
  6. Step 6: Final answer
    x = 41,644.39

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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.