Home / 87,213.96-120,358.98-49,491.72

Finding the Fourth Proportional to 87,213.96, 120,358.98 and 49,491.72

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Solution

The fourth proportional to 87,213.96, 120,358.98 and 49,491.72 is: 68,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,213.96 : 120,358.98 = 49,491.72 : x
  2. Step 2: Convert to fraction form
    87,213.96/120,358.98 = 49,491.72/x
  3. Step 3: Cross multiply
    87,213.96x = 120,358.98 × 49,491.72
  4. Step 4: Simplify right side
    87,213.96x = 5,956,772,937.65
  5. Step 5: Solve for x
    x = 5,956,772,937.65/87,213.96
  6. Step 6: Final answer
    x = 68,300.68

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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.