Home / 68,123.32-102,201.39-21,376.19

Finding the Fourth Proportional to 68,123.32, 102,201.39 and 21,376.19

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Solution

The fourth proportional to 68,123.32, 102,201.39 and 21,376.19 is: 32,069.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,123.32 : 102,201.39 = 21,376.19 : x
  2. Step 2: Convert to fraction form
    68,123.32/102,201.39 = 21,376.19/x
  3. Step 3: Cross multiply
    68,123.32x = 102,201.39 × 21,376.19
  4. Step 4: Simplify right side
    68,123.32x = 2,184,676,224.02
  5. Step 5: Solve for x
    x = 2,184,676,224.02/68,123.32
  6. Step 6: Final answer
    x = 32,069.44

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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.