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Finding the Fourth Proportional to 45,229.88, 67,848.07 and 11,949.51

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Solution

The fourth proportional to 45,229.88, 67,848.07 and 11,949.51 is: 17,925.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,229.88 : 67,848.07 = 11,949.51 : x
  2. Step 2: Convert to fraction form
    45,229.88/67,848.07 = 11,949.51/x
  3. Step 3: Cross multiply
    45,229.88x = 67,848.07 × 11,949.51
  4. Step 4: Simplify right side
    45,229.88x = 810,751,190.95
  5. Step 5: Solve for x
    x = 810,751,190.95/45,229.88
  6. Step 6: Final answer
    x = 17,925.12

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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.