Home / 81,584.64-112,558.20-51,372.60

Finding the Fourth Proportional to 81,584.64, 112,558.20 and 51,372.60

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Solution

The fourth proportional to 81,584.64, 112,558.20 and 51,372.60 is: 70,876.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,584.64 : 112,558.20 = 51,372.60 : x
  2. Step 2: Convert to fraction form
    81,584.64/112,558.20 = 51,372.60/x
  3. Step 3: Cross multiply
    81,584.64x = 112,558.20 × 51,372.60
  4. Step 4: Simplify right side
    81,584.64x = 5,782,407,385.32
  5. Step 5: Solve for x
    x = 5,782,407,385.32/81,584.64
  6. Step 6: Final answer
    x = 70,876.18

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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.