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Finding the Fourth Proportional to 81,361.57, 112,277.76 and 45,059.56

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Solution

The fourth proportional to 81,361.57, 112,277.76 and 45,059.56 is: 62,181.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,361.57 : 112,277.76 = 45,059.56 : x
  2. Step 2: Convert to fraction form
    81,361.57/112,277.76 = 45,059.56/x
  3. Step 3: Cross multiply
    81,361.57x = 112,277.76 × 45,059.56
  4. Step 4: Simplify right side
    81,361.57x = 5,059,186,463.39
  5. Step 5: Solve for x
    x = 5,059,186,463.39/81,361.57
  6. Step 6: Final answer
    x = 62,181.52

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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.