Home / 85,251.68-117,644.63-47,012.85

Finding the Fourth Proportional to 85,251.68, 117,644.63 and 47,012.85

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Solution

The fourth proportional to 85,251.68, 117,644.63 and 47,012.85 is: 64,876.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,251.68 : 117,644.63 = 47,012.85 : x
  2. Step 2: Convert to fraction form
    85,251.68/117,644.63 = 47,012.85/x
  3. Step 3: Cross multiply
    85,251.68x = 117,644.63 × 47,012.85
  4. Step 4: Simplify right side
    85,251.68x = 5,530,808,909.78
  5. Step 5: Solve for x
    x = 5,530,808,909.78/85,251.68
  6. Step 6: Final answer
    x = 64,876.24

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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.