Home / 85,118.52-117,456.30-47,396.28

Finding the Fourth Proportional to 85,118.52, 117,456.30 and 47,396.28

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Solution

The fourth proportional to 85,118.52, 117,456.30 and 47,396.28 is: 65,402.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,118.52 : 117,456.30 = 47,396.28 : x
  2. Step 2: Convert to fraction form
    85,118.52/117,456.30 = 47,396.28/x
  3. Step 3: Cross multiply
    85,118.52x = 117,456.30 × 47,396.28
  4. Step 4: Simplify right side
    85,118.52x = 5,566,991,682.56
  5. Step 5: Solve for x
    x = 5,566,991,682.56/85,118.52
  6. Step 6: Final answer
    x = 65,402.83

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1.5x scale

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.