Home / 87,718.17-131,587.57-30,774.70

Finding the Fourth Proportional to 87,718.17, 131,587.57 and 30,774.70

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Solution

The fourth proportional to 87,718.17, 131,587.57 and 30,774.70 is: 46,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,718.17 : 131,587.57 = 30,774.70 : x
  2. Step 2: Convert to fraction form
    87,718.17/131,587.57 = 30,774.70/x
  3. Step 3: Cross multiply
    87,718.17x = 131,587.57 × 30,774.70
  4. Step 4: Simplify right side
    87,718.17x = 4,049,568,193.43
  5. Step 5: Solve for x
    x = 4,049,568,193.43/87,718.17
  6. Step 6: Final answer
    x = 46,165.67

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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.