Home / 81,750.60-112,824.36-54,949.32

Finding the Fourth Proportional to 81,750.60, 112,824.36 and 54,949.32

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Solution

The fourth proportional to 81,750.60, 112,824.36 and 54,949.32 is: 75,835.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,750.60 : 112,824.36 = 54,949.32 : x
  2. Step 2: Convert to fraction form
    81,750.60/112,824.36 = 54,949.32/x
  3. Step 3: Cross multiply
    81,750.60x = 112,824.36 × 54,949.32
  4. Step 4: Simplify right side
    81,750.60x = 6,199,621,861.44
  5. Step 5: Solve for x
    x = 6,199,621,861.44/81,750.60
  6. Step 6: Final answer
    x = 75,835.80

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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.