Home / 87,179.49-120,365.46-66,999.15

Finding the Fourth Proportional to 87,179.49, 120,365.46 and 66,999.15

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Solution

The fourth proportional to 87,179.49, 120,365.46 and 66,999.15 is: 92,503.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,179.49 : 120,365.46 = 66,999.15 : x
  2. Step 2: Convert to fraction form
    87,179.49/120,365.46 = 66,999.15/x
  3. Step 3: Cross multiply
    87,179.49x = 120,365.46 × 66,999.15
  4. Step 4: Simplify right side
    87,179.49x = 8,064,383,509.36
  5. Step 5: Solve for x
    x = 8,064,383,509.36/87,179.49
  6. Step 6: Final answer
    x = 92,503.22

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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.