Home / 85,139.55-117,489.84-50,684.16

Finding the Fourth Proportional to 85,139.55, 117,489.84 and 50,684.16

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Solution

The fourth proportional to 85,139.55, 117,489.84 and 50,684.16 is: 69,942.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,139.55 : 117,489.84 = 50,684.16 : x
  2. Step 2: Convert to fraction form
    85,139.55/117,489.84 = 50,684.16/x
  3. Step 3: Cross multiply
    85,139.55x = 117,489.84 × 50,684.16
  4. Step 4: Simplify right side
    85,139.55x = 5,954,873,848.93
  5. Step 5: Solve for x
    x = 5,954,873,848.93/85,139.55
  6. Step 6: Final answer
    x = 69,942.51

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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.