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Finding the Fourth Proportional to 85,048, 126,673.60 and 80,607.04

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Solution

The fourth proportional to 85,048, 126,673.60 and 80,607.04 is: 120,059.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,048 : 126,673.60 = 80,607.04 : x
  2. Step 2: Convert to fraction form
    85,048/126,673.60 = 80,607.04/x
  3. Step 3: Cross multiply
    85,048x = 126,673.60 × 80,607.04
  4. Step 4: Simplify right side
    85,048x = 10,210,783,942.14
  5. Step 5: Solve for x
    x = 10,210,783,942.14/85,048
  6. Step 6: Final answer
    x = 120,059.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.