Home / 85,456.74-117,932.68-47,218.76

Finding the Fourth Proportional to 85,456.74, 117,932.68 and 47,218.76

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Solution

The fourth proportional to 85,456.74, 117,932.68 and 47,218.76 is: 65,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,456.74 : 117,932.68 = 47,218.76 : x
  2. Step 2: Convert to fraction form
    85,456.74/117,932.68 = 47,218.76/x
  3. Step 3: Cross multiply
    85,456.74x = 117,932.68 × 47,218.76
  4. Step 4: Simplify right side
    85,456.74x = 5,568,634,913.08
  5. Step 5: Solve for x
    x = 5,568,634,913.08/85,456.74
  6. Step 6: Final answer
    x = 65,163.20

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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.