Home / 76,403.82-113,817.96-74,082.36

Finding the Fourth Proportional to 76,403.82, 113,817.96 and 74,082.36

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Solution

The fourth proportional to 76,403.82, 113,817.96 and 74,082.36 is: 110,359.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,403.82 : 113,817.96 = 74,082.36 : x
  2. Step 2: Convert to fraction form
    76,403.82/113,817.96 = 74,082.36/x
  3. Step 3: Cross multiply
    76,403.82x = 113,817.96 × 74,082.36
  4. Step 4: Simplify right side
    76,403.82x = 8,431,903,087.19
  5. Step 5: Solve for x
    x = 8,431,903,087.19/76,403.82
  6. Step 6: Final answer
    x = 110,359.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.