Home / 81,474.05-112,473.46-51,274.01

Finding the Fourth Proportional to 81,474.05, 112,473.46 and 51,274.01

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Solution

The fourth proportional to 81,474.05, 112,473.46 and 51,274.01 is: 70,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,474.05 : 112,473.46 = 51,274.01 : x
  2. Step 2: Convert to fraction form
    81,474.05/112,473.46 = 51,274.01/x
  3. Step 3: Cross multiply
    81,474.05x = 112,473.46 × 51,274.01
  4. Step 4: Simplify right side
    81,474.05x = 5,766,965,658.05
  5. Step 5: Solve for x
    x = 5,766,965,658.05/81,474.05
  6. Step 6: Final answer
    x = 70,782.85

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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.