Home / 68,434.05-102,654.72-21,690.57

Finding the Fourth Proportional to 68,434.05, 102,654.72 and 21,690.57

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Solution

The fourth proportional to 68,434.05, 102,654.72 and 21,690.57 is: 32,537.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,434.05 : 102,654.72 = 21,690.57 : x
  2. Step 2: Convert to fraction form
    68,434.05/102,654.72 = 21,690.57/x
  3. Step 3: Cross multiply
    68,434.05x = 102,654.72 × 21,690.57
  4. Step 4: Simplify right side
    68,434.05x = 2,226,639,389.99
  5. Step 5: Solve for x
    x = 2,226,639,389.99/68,434.05
  6. Step 6: Final answer
    x = 32,537.01

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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.