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Finding the Fourth Proportional to 81,333.54, 112,239.18 and 45,523.55

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Solution

The fourth proportional to 81,333.54, 112,239.18 and 45,523.55 is: 62,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,333.54 : 112,239.18 = 45,523.55 : x
  2. Step 2: Convert to fraction form
    81,333.54/112,239.18 = 45,523.55/x
  3. Step 3: Cross multiply
    81,333.54x = 112,239.18 × 45,523.55
  4. Step 4: Simplify right side
    81,333.54x = 5,109,525,361.49
  5. Step 5: Solve for x
    x = 5,109,525,361.49/81,333.54
  6. Step 6: Final answer
    x = 62,821.87

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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.