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Finding the Fourth Proportional to 85,950.27, 128,883.60 and 29,793.60

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Solution

The fourth proportional to 85,950.27, 128,883.60 and 29,793.60 is: 44,675.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,950.27 : 128,883.60 = 29,793.60 : x
  2. Step 2: Convert to fraction form
    85,950.27/128,883.60 = 29,793.60/x
  3. Step 3: Cross multiply
    85,950.27x = 128,883.60 × 29,793.60
  4. Step 4: Simplify right side
    85,950.27x = 3,839,906,424.96
  5. Step 5: Solve for x
    x = 3,839,906,424.96/85,950.27
  6. Step 6: Final answer
    x = 44,675.91

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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.