Home / 79,539.42-109,765.14-43,729.70

Finding the Fourth Proportional to 79,539.42, 109,765.14 and 43,729.70

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Solution

The fourth proportional to 79,539.42, 109,765.14 and 43,729.70 is: 60,347.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,539.42 : 109,765.14 = 43,729.70 : x
  2. Step 2: Convert to fraction form
    79,539.42/109,765.14 = 43,729.70/x
  3. Step 3: Cross multiply
    79,539.42x = 109,765.14 × 43,729.70
  4. Step 4: Simplify right side
    79,539.42x = 4,799,996,093.83
  5. Step 5: Solve for x
    x = 4,799,996,093.83/79,539.42
  6. Step 6: Final answer
    x = 60,347.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.