Home / 81,524.25-112,455.66-51,261.60

Finding the Fourth Proportional to 81,524.25, 112,455.66 and 51,261.60

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Solution

The fourth proportional to 81,524.25, 112,455.66 and 51,261.60 is: 70,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,524.25 : 112,455.66 = 51,261.60 : x
  2. Step 2: Convert to fraction form
    81,524.25/112,455.66 = 51,261.60/x
  3. Step 3: Cross multiply
    81,524.25x = 112,455.66 × 51,261.60
  4. Step 4: Simplify right side
    81,524.25x = 5,764,657,060.66
  5. Step 5: Solve for x
    x = 5,764,657,060.66/81,524.25
  6. Step 6: Final answer
    x = 70,710.95

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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.