Home / 85,261.92-117,659.12-49,449.64

Finding the Fourth Proportional to 85,261.92, 117,659.12 and 49,449.64

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Solution

The fourth proportional to 85,261.92, 117,659.12 and 49,449.64 is: 68,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,261.92 : 117,659.12 = 49,449.64 : x
  2. Step 2: Convert to fraction form
    85,261.92/117,659.12 = 49,449.64/x
  3. Step 3: Cross multiply
    85,261.92x = 117,659.12 × 49,449.64
  4. Step 4: Simplify right side
    85,261.92x = 5,818,201,126.72
  5. Step 5: Solve for x
    x = 5,818,201,126.72/85,261.92
  6. Step 6: Final answer
    x = 68,239.15

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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.