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Finding the Fourth Proportional to 45,245.74, 67,843.94 and 15,661.12

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Solution

The fourth proportional to 45,245.74, 67,843.94 and 15,661.12 is: 23,483.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,245.74 : 67,843.94 = 15,661.12 : x
  2. Step 2: Convert to fraction form
    45,245.74/67,843.94 = 15,661.12/x
  3. Step 3: Cross multiply
    45,245.74x = 67,843.94 × 15,661.12
  4. Step 4: Simplify right side
    45,245.74x = 1,062,512,085.61
  5. Step 5: Solve for x
    x = 1,062,512,085.61/45,245.74
  6. Step 6: Final answer
    x = 23,483.14

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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.