Home / 57,989.12-86,983.68-16,435.84

Finding the Fourth Proportional to 57,989.12, 86,983.68 and 16,435.84

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Solution

The fourth proportional to 57,989.12, 86,983.68 and 16,435.84 is: 24,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,989.12 : 86,983.68 = 16,435.84 : x
  2. Step 2: Convert to fraction form
    57,989.12/86,983.68 = 16,435.84/x
  3. Step 3: Cross multiply
    57,989.12x = 86,983.68 × 16,435.84
  4. Step 4: Simplify right side
    57,989.12x = 1,429,649,847.09
  5. Step 5: Solve for x
    x = 1,429,649,847.09/57,989.12
  6. Step 6: Final answer
    x = 24,653.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.