Home / 81,335.22-112,236.48-49,500.60

Finding the Fourth Proportional to 81,335.22, 112,236.48 and 49,500.60

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Solution

The fourth proportional to 81,335.22, 112,236.48 and 49,500.60 is: 68,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.22 : 112,236.48 = 49,500.60 : x
  2. Step 2: Convert to fraction form
    81,335.22/112,236.48 = 49,500.60/x
  3. Step 3: Cross multiply
    81,335.22x = 112,236.48 × 49,500.60
  4. Step 4: Simplify right side
    81,335.22x = 5,555,773,101.89
  5. Step 5: Solve for x
    x = 5,555,773,101.89/81,335.22
  6. Step 6: Final answer
    x = 68,307.10

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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.