Home / 87,014.22-120,137.49-66,835.14

Finding the Fourth Proportional to 87,014.22, 120,137.49 and 66,835.14

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Solution

The fourth proportional to 87,014.22, 120,137.49 and 66,835.14 is: 92,276.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,014.22 : 120,137.49 = 66,835.14 : x
  2. Step 2: Convert to fraction form
    87,014.22/120,137.49 = 66,835.14/x
  3. Step 3: Cross multiply
    87,014.22x = 120,137.49 × 66,835.14
  4. Step 4: Simplify right side
    87,014.22x = 8,029,405,963.40
  5. Step 5: Solve for x
    x = 8,029,405,963.40/87,014.22
  6. Step 6: Final answer
    x = 92,276.94

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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.