Home / 90,384.54-135,549.39-27,187.86

Finding the Fourth Proportional to 90,384.54, 135,549.39 and 27,187.86

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Solution

The fourth proportional to 90,384.54, 135,549.39 and 27,187.86 is: 40,773.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,384.54 : 135,549.39 = 27,187.86 : x
  2. Step 2: Convert to fraction form
    90,384.54/135,549.39 = 27,187.86/x
  3. Step 3: Cross multiply
    90,384.54x = 135,549.39 × 27,187.86
  4. Step 4: Simplify right side
    90,384.54x = 3,685,297,838.41
  5. Step 5: Solve for x
    x = 3,685,297,838.41/90,384.54
  6. Step 6: Final answer
    x = 40,773.54

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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.