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Finding the Fourth Proportional to 85,599.38, 128,435.83 and 33,045.77

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Solution

The fourth proportional to 85,599.38, 128,435.83 and 33,045.77 is: 49,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,599.38 : 128,435.83 = 33,045.77 : x
  2. Step 2: Convert to fraction form
    85,599.38/128,435.83 = 33,045.77/x
  3. Step 3: Cross multiply
    85,599.38x = 128,435.83 × 33,045.77
  4. Step 4: Simplify right side
    85,599.38x = 4,244,261,136.41
  5. Step 5: Solve for x
    x = 4,244,261,136.41/85,599.38
  6. Step 6: Final answer
    x = 49,582.85

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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.