Home / 43,770.12-65,661.26-14,178.39

Finding the Fourth Proportional to 43,770.12, 65,661.26 and 14,178.39

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Solution

The fourth proportional to 43,770.12, 65,661.26 and 14,178.39 is: 21,269.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,770.12 : 65,661.26 = 14,178.39 : x
  2. Step 2: Convert to fraction form
    43,770.12/65,661.26 = 14,178.39/x
  3. Step 3: Cross multiply
    43,770.12x = 65,661.26 × 14,178.39
  4. Step 4: Simplify right side
    43,770.12x = 930,970,881.28
  5. Step 5: Solve for x
    x = 930,970,881.28/43,770.12
  6. Step 6: Final answer
    x = 21,269.55

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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.