Home / 68,061.11-102,091.66-21,317.63

Finding the Fourth Proportional to 68,061.11, 102,091.66 and 21,317.63

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Solution

The fourth proportional to 68,061.11, 102,091.66 and 21,317.63 is: 31,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,061.11 : 102,091.66 = 21,317.63 : x
  2. Step 2: Convert to fraction form
    68,061.11/102,091.66 = 21,317.63/x
  3. Step 3: Cross multiply
    68,061.11x = 102,091.66 × 21,317.63
  4. Step 4: Simplify right side
    68,061.11x = 2,176,351,670.21
  5. Step 5: Solve for x
    x = 2,176,351,670.21/68,061.11
  6. Step 6: Final answer
    x = 31,976.44

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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.