Home / 87,872.37-121,263.99-47,586.20

Finding the Fourth Proportional to 87,872.37, 121,263.99 and 47,586.20

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Solution

The fourth proportional to 87,872.37, 121,263.99 and 47,586.20 is: 65,669.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,872.37 : 121,263.99 = 47,586.20 : x
  2. Step 2: Convert to fraction form
    87,872.37/121,263.99 = 47,586.20/x
  3. Step 3: Cross multiply
    87,872.37x = 121,263.99 × 47,586.20
  4. Step 4: Simplify right side
    87,872.37x = 5,770,491,866.70
  5. Step 5: Solve for x
    x = 5,770,491,866.70/87,872.37
  6. Step 6: Final answer
    x = 65,669.01

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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.