Home / 80,984.18-111,758.09-45,174.17

Finding the Fourth Proportional to 80,984.18, 111,758.09 and 45,174.17

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Solution

The fourth proportional to 80,984.18, 111,758.09 and 45,174.17 is: 62,340.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,984.18 : 111,758.09 = 45,174.17 : x
  2. Step 2: Convert to fraction form
    80,984.18/111,758.09 = 45,174.17/x
  3. Step 3: Cross multiply
    80,984.18x = 111,758.09 × 45,174.17
  4. Step 4: Simplify right side
    80,984.18x = 5,048,578,171.87
  5. Step 5: Solve for x
    x = 5,048,578,171.87/80,984.18
  6. Step 6: Final answer
    x = 62,340.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.