Home / 85,560.88-128,340.50-23,231.38

Finding the Fourth Proportional to 85,560.88, 128,340.50 and 23,231.38

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Solution

The fourth proportional to 85,560.88, 128,340.50 and 23,231.38 is: 34,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,560.88 : 128,340.50 = 23,231.38 : x
  2. Step 2: Convert to fraction form
    85,560.88/128,340.50 = 23,231.38/x
  3. Step 3: Cross multiply
    85,560.88x = 128,340.50 × 23,231.38
  4. Step 4: Simplify right side
    85,560.88x = 2,981,526,924.89
  5. Step 5: Solve for x
    x = 2,981,526,924.89/85,560.88
  6. Step 6: Final answer
    x = 34,846.85

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1.5x scale

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.