Home / 75,715.39-113,568.99-23,120.78

Finding the Fourth Proportional to 75,715.39, 113,568.99 and 23,120.78

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Solution

The fourth proportional to 75,715.39, 113,568.99 and 23,120.78 is: 34,679.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,715.39 : 113,568.99 = 23,120.78 : x
  2. Step 2: Convert to fraction form
    75,715.39/113,568.99 = 23,120.78/x
  3. Step 3: Cross multiply
    75,715.39x = 113,568.99 × 23,120.78
  4. Step 4: Simplify right side
    75,715.39x = 2,625,803,632.61
  5. Step 5: Solve for x
    x = 2,625,803,632.61/75,715.39
  6. Step 6: Final answer
    x = 34,679.92

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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.