Home / 75,690.96-113,288.76-55,695.12

Finding the Fourth Proportional to 75,690.96, 113,288.76 and 55,695.12

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Solution

The fourth proportional to 75,690.96, 113,288.76 and 55,695.12 is: 83,360.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,690.96 : 113,288.76 = 55,695.12 : x
  2. Step 2: Convert to fraction form
    75,690.96/113,288.76 = 55,695.12/x
  3. Step 3: Cross multiply
    75,690.96x = 113,288.76 × 55,695.12
  4. Step 4: Simplify right side
    75,690.96x = 6,309,631,082.85
  5. Step 5: Solve for x
    x = 6,309,631,082.85/75,690.96
  6. Step 6: Final answer
    x = 83,360.43

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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.