Home / 68,123.07-102,201.89-21,376.35

Finding the Fourth Proportional to 68,123.07, 102,201.89 and 21,376.35

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Solution

The fourth proportional to 68,123.07, 102,201.89 and 21,376.35 is: 32,069.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,123.07 : 102,201.89 = 21,376.35 : x
  2. Step 2: Convert to fraction form
    68,123.07/102,201.89 = 21,376.35/x
  3. Step 3: Cross multiply
    68,123.07x = 102,201.89 × 21,376.35
  4. Step 4: Simplify right side
    68,123.07x = 2,184,703,371.30
  5. Step 5: Solve for x
    x = 2,184,703,371.30/68,123.07
  6. Step 6: Final answer
    x = 32,069.95

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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.