Home / 68,094.33-102,142.23-20,717.11

Finding the Fourth Proportional to 68,094.33, 102,142.23 and 20,717.11

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Solution

The fourth proportional to 68,094.33, 102,142.23 and 20,717.11 is: 31,075.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,094.33 : 102,142.23 = 20,717.11 : x
  2. Step 2: Convert to fraction form
    68,094.33/102,142.23 = 20,717.11/x
  3. Step 3: Cross multiply
    68,094.33x = 102,142.23 × 20,717.11
  4. Step 4: Simplify right side
    68,094.33x = 2,116,091,814.56
  5. Step 5: Solve for x
    x = 2,116,091,814.56/68,094.33
  6. Step 6: Final answer
    x = 31,075.89

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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.