Home / 87,242.87-120,396.24-51,430.73

Finding the Fourth Proportional to 87,242.87, 120,396.24 and 51,430.73

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Solution

The fourth proportional to 87,242.87, 120,396.24 and 51,430.73 is: 70,975.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,242.87 : 120,396.24 = 51,430.73 : x
  2. Step 2: Convert to fraction form
    87,242.87/120,396.24 = 51,430.73/x
  3. Step 3: Cross multiply
    87,242.87x = 120,396.24 × 51,430.73
  4. Step 4: Simplify right side
    87,242.87x = 6,192,066,512.46
  5. Step 5: Solve for x
    x = 6,192,066,512.46/87,242.87
  6. Step 6: Final answer
    x = 70,975.04

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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.