Home / 45,630.54-68,453.91-20,669.58

Finding the Fourth Proportional to 45,630.54, 68,453.91 and 20,669.58

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Solution

The fourth proportional to 45,630.54, 68,453.91 and 20,669.58 is: 31,008.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,630.54 : 68,453.91 = 20,669.58 : x
  2. Step 2: Convert to fraction form
    45,630.54/68,453.91 = 20,669.58/x
  3. Step 3: Cross multiply
    45,630.54x = 68,453.91 × 20,669.58
  4. Step 4: Simplify right side
    45,630.54x = 1,414,913,569.06
  5. Step 5: Solve for x
    x = 1,414,913,569.06/45,630.54
  6. Step 6: Final answer
    x = 31,008.04

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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.