Home / 81,175.72-112,021.38-45,366.28

Finding the Fourth Proportional to 81,175.72, 112,021.38 and 45,366.28

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Solution

The fourth proportional to 81,175.72, 112,021.38 and 45,366.28 is: 62,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.72 : 112,021.38 = 45,366.28 : x
  2. Step 2: Convert to fraction form
    81,175.72/112,021.38 = 45,366.28/x
  3. Step 3: Cross multiply
    81,175.72x = 112,021.38 × 45,366.28
  4. Step 4: Simplify right side
    81,175.72x = 5,081,993,291.07
  5. Step 5: Solve for x
    x = 5,081,993,291.07/81,175.72
  6. Step 6: Final answer
    x = 62,604.84

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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.