Home / 87,299.30-120,488.73-51,487.22

Finding the Fourth Proportional to 87,299.30, 120,488.73 and 51,487.22

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Solution

The fourth proportional to 87,299.30, 120,488.73 and 51,487.22 is: 71,061.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,299.30 : 120,488.73 = 51,487.22 : x
  2. Step 2: Convert to fraction form
    87,299.30/120,488.73 = 51,487.22/x
  3. Step 3: Cross multiply
    87,299.30x = 120,488.73 × 51,487.22
  4. Step 4: Simplify right side
    87,299.30x = 6,203,629,749.03
  5. Step 5: Solve for x
    x = 6,203,629,749.03/87,299.30
  6. Step 6: Final answer
    x = 71,061.62

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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.