Home / 68,011.12-102,013.89-18,091.36

Finding the Fourth Proportional to 68,011.12, 102,013.89 and 18,091.36

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Solution

The fourth proportional to 68,011.12, 102,013.89 and 18,091.36 is: 27,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,011.12 : 102,013.89 = 18,091.36 : x
  2. Step 2: Convert to fraction form
    68,011.12/102,013.89 = 18,091.36/x
  3. Step 3: Cross multiply
    68,011.12x = 102,013.89 × 18,091.36
  4. Step 4: Simplify right side
    68,011.12x = 1,845,570,008.99
  5. Step 5: Solve for x
    x = 1,845,570,008.99/68,011.12
  6. Step 6: Final answer
    x = 27,136.30

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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.