Home / 68,272.23-102,408.36-21,528.75

Finding the Fourth Proportional to 68,272.23, 102,408.36 and 21,528.75

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Solution

The fourth proportional to 68,272.23, 102,408.36 and 21,528.75 is: 32,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,272.23 : 102,408.36 = 21,528.75 : x
  2. Step 2: Convert to fraction form
    68,272.23/102,408.36 = 21,528.75/x
  3. Step 3: Cross multiply
    68,272.23x = 102,408.36 × 21,528.75
  4. Step 4: Simplify right side
    68,272.23x = 2,204,723,980.35
  5. Step 5: Solve for x
    x = 2,204,723,980.35/68,272.23
  6. Step 6: Final answer
    x = 32,293.13

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1.5x scale

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.