Home / 87,539.48-120,635.92-63,628.28

Finding the Fourth Proportional to 87,539.48, 120,635.92 and 63,628.28

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Solution

The fourth proportional to 87,539.48, 120,635.92 and 63,628.28 is: 87,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,539.48 : 120,635.92 = 63,628.28 : x
  2. Step 2: Convert to fraction form
    87,539.48/120,635.92 = 63,628.28/x
  3. Step 3: Cross multiply
    87,539.48x = 120,635.92 × 63,628.28
  4. Step 4: Simplify right side
    87,539.48x = 7,675,856,095.82
  5. Step 5: Solve for x
    x = 7,675,856,095.82/87,539.48
  6. Step 6: Final answer
    x = 87,684.51

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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.