Home / 68,384.45-102,566.41-21,631.25

Finding the Fourth Proportional to 68,384.45, 102,566.41 and 21,631.25

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Solution

The fourth proportional to 68,384.45, 102,566.41 and 21,631.25 is: 32,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,384.45 : 102,566.41 = 21,631.25 : x
  2. Step 2: Convert to fraction form
    68,384.45/102,566.41 = 21,631.25/x
  3. Step 3: Cross multiply
    68,384.45x = 102,566.41 × 21,631.25
  4. Step 4: Simplify right side
    68,384.45x = 2,218,639,656.31
  5. Step 5: Solve for x
    x = 2,218,639,656.31/68,384.45
  6. Step 6: Final answer
    x = 32,443.63

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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.