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Finding the Fourth Proportional to 81,175.87, 112,020.60 and 45,366.18

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Solution

The fourth proportional to 81,175.87, 112,020.60 and 45,366.18 is: 62,604.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,175.87 : 112,020.60 = 45,366.18 : x
  2. Step 2: Convert to fraction form
    81,175.87/112,020.60 = 45,366.18/x
  3. Step 3: Cross multiply
    81,175.87x = 112,020.60 × 45,366.18
  4. Step 4: Simplify right side
    81,175.87x = 5,081,946,703.31
  5. Step 5: Solve for x
    x = 5,081,946,703.31/81,175.87
  6. Step 6: Final answer
    x = 62,604.15

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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.