Home / 68,567.10-102,858.21-21,809.04

Finding the Fourth Proportional to 68,567.10, 102,858.21 and 21,809.04

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Solution

The fourth proportional to 68,567.10, 102,858.21 and 21,809.04 is: 32,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,567.10 : 102,858.21 = 21,809.04 : x
  2. Step 2: Convert to fraction form
    68,567.10/102,858.21 = 21,809.04/x
  3. Step 3: Cross multiply
    68,567.10x = 102,858.21 × 21,809.04
  4. Step 4: Simplify right side
    68,567.10x = 2,243,238,816.22
  5. Step 5: Solve for x
    x = 2,243,238,816.22/68,567.10
  6. Step 6: Final answer
    x = 32,715.96

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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.