Home / 87,380.55-120,584.01-49,140.09

Finding the Fourth Proportional to 87,380.55, 120,584.01 and 49,140.09

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Solution

The fourth proportional to 87,380.55, 120,584.01 and 49,140.09 is: 67,812.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,380.55 : 120,584.01 = 49,140.09 : x
  2. Step 2: Convert to fraction form
    87,380.55/120,584.01 = 49,140.09/x
  3. Step 3: Cross multiply
    87,380.55x = 120,584.01 × 49,140.09
  4. Step 4: Simplify right side
    87,380.55x = 5,925,508,501.04
  5. Step 5: Solve for x
    x = 5,925,508,501.04/87,380.55
  6. Step 6: Final answer
    x = 67,812.67

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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.