Home / 85,534.98-128,302.78-29,391.27

Finding the Fourth Proportional to 85,534.98, 128,302.78 and 29,391.27

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Solution

The fourth proportional to 85,534.98, 128,302.78 and 29,391.27 is: 44,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,534.98 : 128,302.78 = 29,391.27 : x
  2. Step 2: Convert to fraction form
    85,534.98/128,302.78 = 29,391.27/x
  3. Step 3: Cross multiply
    85,534.98x = 128,302.78 × 29,391.27
  4. Step 4: Simplify right side
    85,534.98x = 3,770,981,648.73
  5. Step 5: Solve for x
    x = 3,770,981,648.73/85,534.98
  6. Step 6: Final answer
    x = 44,087.01

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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.