Home / 68,385.08-102,567.35-21,631.88

Finding the Fourth Proportional to 68,385.08, 102,567.35 and 21,631.88

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Solution

The fourth proportional to 68,385.08, 102,567.35 and 21,631.88 is: 32,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,385.08 : 102,567.35 = 21,631.88 : x
  2. Step 2: Convert to fraction form
    68,385.08/102,567.35 = 21,631.88/x
  3. Step 3: Cross multiply
    68,385.08x = 102,567.35 × 21,631.88
  4. Step 4: Simplify right side
    68,385.08x = 2,218,724,607.12
  5. Step 5: Solve for x
    x = 2,218,724,607.12/68,385.08
  6. Step 6: Final answer
    x = 32,444.57

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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.