Home / 85,846.20-128,760.66-23,525.88

Finding the Fourth Proportional to 85,846.20, 128,760.66 and 23,525.88

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Solution

The fourth proportional to 85,846.20, 128,760.66 and 23,525.88 is: 35,286.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,846.20 : 128,760.66 = 23,525.88 : x
  2. Step 2: Convert to fraction form
    85,846.20/128,760.66 = 23,525.88/x
  3. Step 3: Cross multiply
    85,846.20x = 128,760.66 × 23,525.88
  4. Step 4: Simplify right side
    85,846.20x = 3,029,207,835.88
  5. Step 5: Solve for x
    x = 3,029,207,835.88/85,846.20
  6. Step 6: Final answer
    x = 35,286.45

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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.