Home / 77,286-115,895.24-27,349.50

Finding the Fourth Proportional to 77,286, 115,895.24 and 27,349.50

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Solution

The fourth proportional to 77,286, 115,895.24 and 27,349.50 is: 41,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,286 : 115,895.24 = 27,349.50 : x
  2. Step 2: Convert to fraction form
    77,286/115,895.24 = 27,349.50/x
  3. Step 3: Cross multiply
    77,286x = 115,895.24 × 27,349.50
  4. Step 4: Simplify right side
    77,286x = 3,169,676,866.38
  5. Step 5: Solve for x
    x = 3,169,676,866.38/77,286
  6. Step 6: Final answer
    x = 41,012.30

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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.