Home / 87,625.50-120,903.39-51,817.02

Finding the Fourth Proportional to 87,625.50, 120,903.39 and 51,817.02

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Solution

The fourth proportional to 87,625.50, 120,903.39 and 51,817.02 is: 71,495.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,625.50 : 120,903.39 = 51,817.02 : x
  2. Step 2: Convert to fraction form
    87,625.50/120,903.39 = 51,817.02/x
  3. Step 3: Cross multiply
    87,625.50x = 120,903.39 × 51,817.02
  4. Step 4: Simplify right side
    87,625.50x = 6,264,853,377.70
  5. Step 5: Solve for x
    x = 6,264,853,377.70/87,625.50
  6. Step 6: Final answer
    x = 71,495.78

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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.