Home / 87,047.43-120,116.91-51,232.56

Finding the Fourth Proportional to 87,047.43, 120,116.91 and 51,232.56

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Solution

The fourth proportional to 87,047.43, 120,116.91 and 51,232.56 is: 70,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,047.43 : 120,116.91 = 51,232.56 : x
  2. Step 2: Convert to fraction form
    87,047.43/120,116.91 = 51,232.56/x
  3. Step 3: Cross multiply
    87,047.43x = 120,116.91 × 51,232.56
  4. Step 4: Simplify right side
    87,047.43x = 6,153,896,798.59
  5. Step 5: Solve for x
    x = 6,153,896,798.59/87,047.43
  6. Step 6: Final answer
    x = 70,695.90

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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.