Home / 68,541.66-102,814.52-18,621.50

Finding the Fourth Proportional to 68,541.66, 102,814.52 and 18,621.50

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Solution

The fourth proportional to 68,541.66, 102,814.52 and 18,621.50 is: 27,932.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,541.66 : 102,814.52 = 18,621.50 : x
  2. Step 2: Convert to fraction form
    68,541.66/102,814.52 = 18,621.50/x
  3. Step 3: Cross multiply
    68,541.66x = 102,814.52 × 18,621.50
  4. Step 4: Simplify right side
    68,541.66x = 1,914,559,977.00
  5. Step 5: Solve for x
    x = 1,914,559,977.00/68,541.66
  6. Step 6: Final answer
    x = 27,932.79

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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.