Home / 77,679.26-116,268.24-40,187.72

Finding the Fourth Proportional to 77,679.26, 116,268.24 and 40,187.72

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Solution

The fourth proportional to 77,679.26, 116,268.24 and 40,187.72 is: 60,151.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,679.26 : 116,268.24 = 40,187.72 : x
  2. Step 2: Convert to fraction form
    77,679.26/116,268.24 = 40,187.72/x
  3. Step 3: Cross multiply
    77,679.26x = 116,268.24 × 40,187.72
  4. Step 4: Simplify right side
    77,679.26x = 4,672,555,474.01
  5. Step 5: Solve for x
    x = 4,672,555,474.01/77,679.26
  6. Step 6: Final answer
    x = 60,151.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.