Home / 85,469.12-128,249.58-35,583.66

Finding the Fourth Proportional to 85,469.12, 128,249.58 and 35,583.66

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Solution

The fourth proportional to 85,469.12, 128,249.58 and 35,583.66 is: 53,394.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,469.12 : 128,249.58 = 35,583.66 : x
  2. Step 2: Convert to fraction form
    85,469.12/128,249.58 = 35,583.66/x
  3. Step 3: Cross multiply
    85,469.12x = 128,249.58 × 35,583.66
  4. Step 4: Simplify right side
    85,469.12x = 4,563,589,449.86
  5. Step 5: Solve for x
    x = 4,563,589,449.86/85,469.12
  6. Step 6: Final answer
    x = 53,394.60

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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.