Home / 87,583.16-120,821.46-51,755.84

Finding the Fourth Proportional to 87,583.16, 120,821.46 and 51,755.84

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Solution

The fourth proportional to 87,583.16, 120,821.46 and 51,755.84 is: 71,397.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,583.16 : 120,821.46 = 51,755.84 : x
  2. Step 2: Convert to fraction form
    87,583.16/120,821.46 = 51,755.84/x
  3. Step 3: Cross multiply
    87,583.16x = 120,821.46 × 51,755.84
  4. Step 4: Simplify right side
    87,583.16x = 6,253,216,152.33
  5. Step 5: Solve for x
    x = 6,253,216,152.33/87,583.16
  6. Step 6: Final answer
    x = 71,397.47

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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.