Home / 45,669.78-68,511.20-14,082.51

Finding the Fourth Proportional to 45,669.78, 68,511.20 and 14,082.51

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Solution

The fourth proportional to 45,669.78, 68,511.20 and 14,082.51 is: 21,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,669.78 : 68,511.20 = 14,082.51 : x
  2. Step 2: Convert to fraction form
    45,669.78/68,511.20 = 14,082.51/x
  3. Step 3: Cross multiply
    45,669.78x = 68,511.20 × 14,082.51
  4. Step 4: Simplify right side
    45,669.78x = 964,809,588.70
  5. Step 5: Solve for x
    x = 964,809,588.70/45,669.78
  6. Step 6: Final answer
    x = 21,125.78

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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.