Home / 87,546.40-120,814.53-49,820.65

Finding the Fourth Proportional to 87,546.40, 120,814.53 and 49,820.65

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Solution

The fourth proportional to 87,546.40, 120,814.53 and 49,820.65 is: 68,752.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,546.40 : 120,814.53 = 49,820.65 : x
  2. Step 2: Convert to fraction form
    87,546.40/120,814.53 = 49,820.65/x
  3. Step 3: Cross multiply
    87,546.40x = 120,814.53 × 49,820.65
  4. Step 4: Simplify right side
    87,546.40x = 6,019,057,925.18
  5. Step 5: Solve for x
    x = 6,019,057,925.18/87,546.40
  6. Step 6: Final answer
    x = 68,752.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.