Home / 79,736.40-119,734.20-57,704.40

Finding the Fourth Proportional to 79,736.40, 119,734.20 and 57,704.40

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Solution

The fourth proportional to 79,736.40, 119,734.20 and 57,704.40 is: 86,650.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,736.40 : 119,734.20 = 57,704.40 : x
  2. Step 2: Convert to fraction form
    79,736.40/119,734.20 = 57,704.40/x
  3. Step 3: Cross multiply
    79,736.40x = 119,734.20 × 57,704.40
  4. Step 4: Simplify right side
    79,736.40x = 6,909,190,170.48
  5. Step 5: Solve for x
    x = 6,909,190,170.48/79,736.40
  6. Step 6: Final answer
    x = 86,650.39

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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.