Home / 85,180.10-117,550.96-47,456.78

Finding the Fourth Proportional to 85,180.10, 117,550.96 and 47,456.78

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Solution

The fourth proportional to 85,180.10, 117,550.96 and 47,456.78 is: 65,491.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,180.10 : 117,550.96 = 47,456.78 : x
  2. Step 2: Convert to fraction form
    85,180.10/117,550.96 = 47,456.78/x
  3. Step 3: Cross multiply
    85,180.10x = 117,550.96 × 47,456.78
  4. Step 4: Simplify right side
    85,180.10x = 5,578,589,459.75
  5. Step 5: Solve for x
    x = 5,578,589,459.75/85,180.10
  6. Step 6: Final answer
    x = 65,491.70

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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.