Home / 85,604.20-118,134.06-47,876

Finding the Fourth Proportional to 85,604.20, 118,134.06 and 47,876

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Solution

The fourth proportional to 85,604.20, 118,134.06 and 47,876 is: 66,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,604.20 : 118,134.06 = 47,876 : x
  2. Step 2: Convert to fraction form
    85,604.20/118,134.06 = 47,876/x
  3. Step 3: Cross multiply
    85,604.20x = 118,134.06 × 47,876
  4. Step 4: Simplify right side
    85,604.20x = 5,655,786,256.56
  5. Step 5: Solve for x
    x = 5,655,786,256.56/85,604.20
  6. Step 6: Final answer
    x = 66,069.03

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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.