Home / 81,184.26-112,026.78-45,369.30

Finding the Fourth Proportional to 81,184.26, 112,026.78 and 45,369.30

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Solution

The fourth proportional to 81,184.26, 112,026.78 and 45,369.30 is: 62,605.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,184.26 : 112,026.78 = 45,369.30 : x
  2. Step 2: Convert to fraction form
    81,184.26/112,026.78 = 45,369.30/x
  3. Step 3: Cross multiply
    81,184.26x = 112,026.78 × 45,369.30
  4. Step 4: Simplify right side
    81,184.26x = 5,082,576,589.85
  5. Step 5: Solve for x
    x = 5,082,576,589.85/81,184.26
  6. Step 6: Final answer
    x = 62,605.44

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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.