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Finding the Fourth Proportional to 81,409.87, 112,344.96 and 45,600.22

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Solution

The fourth proportional to 81,409.87, 112,344.96 and 45,600.22 is: 62,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,409.87 : 112,344.96 = 45,600.22 : x
  2. Step 2: Convert to fraction form
    81,409.87/112,344.96 = 45,600.22/x
  3. Step 3: Cross multiply
    81,409.87x = 112,344.96 × 45,600.22
  4. Step 4: Simplify right side
    81,409.87x = 5,122,954,891.89
  5. Step 5: Solve for x
    x = 5,122,954,891.89/81,409.87
  6. Step 6: Final answer
    x = 62,927.93

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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.