Home / 68,337.12-102,521.60-21,588.80

Finding the Fourth Proportional to 68,337.12, 102,521.60 and 21,588.80

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Solution

The fourth proportional to 68,337.12, 102,521.60 and 21,588.80 is: 32,388.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,337.12 : 102,521.60 = 21,588.80 : x
  2. Step 2: Convert to fraction form
    68,337.12/102,521.60 = 21,588.80/x
  3. Step 3: Cross multiply
    68,337.12x = 102,521.60 × 21,588.80
  4. Step 4: Simplify right side
    68,337.12x = 2,213,318,318.08
  5. Step 5: Solve for x
    x = 2,213,318,318.08/68,337.12
  6. Step 6: Final answer
    x = 32,388.23

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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.