Home / 45,414.09-68,146.25-19,118.25

Finding the Fourth Proportional to 45,414.09, 68,146.25 and 19,118.25

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Solution

The fourth proportional to 45,414.09, 68,146.25 and 19,118.25 is: 28,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,414.09 : 68,146.25 = 19,118.25 : x
  2. Step 2: Convert to fraction form
    45,414.09/68,146.25 = 19,118.25/x
  3. Step 3: Cross multiply
    45,414.09x = 68,146.25 × 19,118.25
  4. Step 4: Simplify right side
    45,414.09x = 1,302,836,948.47
  5. Step 5: Solve for x
    x = 1,302,836,948.47/45,414.09
  6. Step 6: Final answer
    x = 28,687.95

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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.