Home / 87,697.22-120,856.82-63,457.16

Finding the Fourth Proportional to 87,697.22, 120,856.82 and 63,457.16

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Solution

The fourth proportional to 87,697.22, 120,856.82 and 63,457.16 is: 87,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,697.22 : 120,856.82 = 63,457.16 : x
  2. Step 2: Convert to fraction form
    87,697.22/120,856.82 = 63,457.16/x
  3. Step 3: Cross multiply
    87,697.22x = 120,856.82 × 63,457.16
  4. Step 4: Simplify right side
    87,697.22x = 7,669,230,563.83
  5. Step 5: Solve for x
    x = 7,669,230,563.83/87,697.22
  6. Step 6: Final answer
    x = 87,451.24

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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.