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Finding the Fourth Proportional to 45,558, 68,348.52 and 12,726

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Solution

The fourth proportional to 45,558, 68,348.52 and 12,726 is: 19,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,558 : 68,348.52 = 12,726 : x
  2. Step 2: Convert to fraction form
    45,558/68,348.52 = 12,726/x
  3. Step 3: Cross multiply
    45,558x = 68,348.52 × 12,726
  4. Step 4: Simplify right side
    45,558x = 869,803,265.52
  5. Step 5: Solve for x
    x = 869,803,265.52/45,558
  6. Step 6: Final answer
    x = 19,092.22

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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.