Home / 87,285.80-120,500.44-58,755.47

Finding the Fourth Proportional to 87,285.80, 120,500.44 and 58,755.47

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Solution

The fourth proportional to 87,285.80, 120,500.44 and 58,755.47 is: 81,113.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,285.80 : 120,500.44 = 58,755.47 : x
  2. Step 2: Convert to fraction form
    87,285.80/120,500.44 = 58,755.47/x
  3. Step 3: Cross multiply
    87,285.80x = 120,500.44 × 58,755.47
  4. Step 4: Simplify right side
    87,285.80x = 7,080,059,238.02
  5. Step 5: Solve for x
    x = 7,080,059,238.02/87,285.80
  6. Step 6: Final answer
    x = 81,113.53

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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.