Home / 81,536.28-112,472.28-51,273.60

Finding the Fourth Proportional to 81,536.28, 112,472.28 and 51,273.60

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Solution

The fourth proportional to 81,536.28, 112,472.28 and 51,273.60 is: 70,727.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,536.28 : 112,472.28 = 51,273.60 : x
  2. Step 2: Convert to fraction form
    81,536.28/112,472.28 = 51,273.60/x
  3. Step 3: Cross multiply
    81,536.28x = 112,472.28 × 51,273.60
  4. Step 4: Simplify right side
    81,536.28x = 5,766,858,695.81
  5. Step 5: Solve for x
    x = 5,766,858,695.81/81,536.28
  6. Step 6: Final answer
    x = 70,727.52

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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.