Home / 57,085.75-85,639.39-17,633.64

Finding the Fourth Proportional to 57,085.75, 85,639.39 and 17,633.64

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Solution

The fourth proportional to 57,085.75, 85,639.39 and 17,633.64 is: 26,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,085.75 : 85,639.39 = 17,633.64 : x
  2. Step 2: Convert to fraction form
    57,085.75/85,639.39 = 17,633.64/x
  3. Step 3: Cross multiply
    57,085.75x = 85,639.39 × 17,633.64
  4. Step 4: Simplify right side
    57,085.75x = 1,510,133,872.79
  5. Step 5: Solve for x
    x = 1,510,133,872.79/57,085.75
  6. Step 6: Final answer
    x = 26,453.78

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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.