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Finding the Fourth Proportional to 43,787, 65,663.49 and 14,197.70

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Solution

The fourth proportional to 43,787, 65,663.49 and 14,197.70 is: 21,291.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,787 : 65,663.49 = 14,197.70 : x
  2. Step 2: Convert to fraction form
    43,787/65,663.49 = 14,197.70/x
  3. Step 3: Cross multiply
    43,787x = 65,663.49 × 14,197.70
  4. Step 4: Simplify right side
    43,787x = 932,270,531.97
  5. Step 5: Solve for x
    x = 932,270,531.97/43,787
  6. Step 6: Final answer
    x = 21,291.03

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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.