Home / 68,016.13-102,030.07-18,768.13

Finding the Fourth Proportional to 68,016.13, 102,030.07 and 18,768.13

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Solution

The fourth proportional to 68,016.13, 102,030.07 and 18,768.13 is: 28,153.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,016.13 : 102,030.07 = 18,768.13 : x
  2. Step 2: Convert to fraction form
    68,016.13/102,030.07 = 18,768.13/x
  3. Step 3: Cross multiply
    68,016.13x = 102,030.07 × 18,768.13
  4. Step 4: Simplify right side
    68,016.13x = 1,914,913,060.60
  5. Step 5: Solve for x
    x = 1,914,913,060.60/68,016.13
  6. Step 6: Final answer
    x = 28,153.81

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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.