Home / 75,690.88-113,581.68-31,318.24

Finding the Fourth Proportional to 75,690.88, 113,581.68 and 31,318.24

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Solution

The fourth proportional to 75,690.88, 113,581.68 and 31,318.24 is: 46,996.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,690.88 : 113,581.68 = 31,318.24 : x
  2. Step 2: Convert to fraction form
    75,690.88/113,581.68 = 31,318.24/x
  3. Step 3: Cross multiply
    75,690.88x = 113,581.68 × 31,318.24
  4. Step 4: Simplify right side
    75,690.88x = 3,557,178,313.84
  5. Step 5: Solve for x
    x = 3,557,178,313.84/75,690.88
  6. Step 6: Final answer
    x = 46,996.13

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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.