Home / 81,175.73-112,022.12-45,365.72

Finding the Fourth Proportional to 81,175.73, 112,022.12 and 45,365.72

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Solution

The fourth proportional to 81,175.73, 112,022.12 and 45,365.72 is: 62,604.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.73 : 112,022.12 = 45,365.72 : x
  2. Step 2: Convert to fraction form
    81,175.73/112,022.12 = 45,365.72/x
  3. Step 3: Cross multiply
    81,175.73x = 112,022.12 × 45,365.72
  4. Step 4: Simplify right side
    81,175.73x = 5,081,963,342.79
  5. Step 5: Solve for x
    x = 5,081,963,342.79/81,175.73
  6. Step 6: Final answer
    x = 62,604.47

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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.