Home / 87,469.30-120,704.16-51,670.81

Finding the Fourth Proportional to 87,469.30, 120,704.16 and 51,670.81

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Solution

The fourth proportional to 87,469.30, 120,704.16 and 51,670.81 is: 71,303.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,469.30 : 120,704.16 = 51,670.81 : x
  2. Step 2: Convert to fraction form
    87,469.30/120,704.16 = 51,670.81/x
  3. Step 3: Cross multiply
    87,469.30x = 120,704.16 × 51,670.81
  4. Step 4: Simplify right side
    87,469.30x = 6,236,881,717.57
  5. Step 5: Solve for x
    x = 6,236,881,717.57/87,469.30
  6. Step 6: Final answer
    x = 71,303.67

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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.