Home / 85,420.08-117,872.96-49,604.24

Finding the Fourth Proportional to 85,420.08, 117,872.96 and 49,604.24

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Solution

The fourth proportional to 85,420.08, 117,872.96 and 49,604.24 is: 68,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,420.08 : 117,872.96 = 49,604.24 : x
  2. Step 2: Convert to fraction form
    85,420.08/117,872.96 = 49,604.24/x
  3. Step 3: Cross multiply
    85,420.08x = 117,872.96 × 49,604.24
  4. Step 4: Simplify right side
    85,420.08x = 5,846,998,597.35
  5. Step 5: Solve for x
    x = 5,846,998,597.35/85,420.08
  6. Step 6: Final answer
    x = 68,449.93

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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.