Home / 88,198.74-121,712.22-47,911.60

Finding the Fourth Proportional to 88,198.74, 121,712.22 and 47,911.60

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Solution

The fourth proportional to 88,198.74, 121,712.22 and 47,911.60 is: 66,116.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,198.74 : 121,712.22 = 47,911.60 : x
  2. Step 2: Convert to fraction form
    88,198.74/121,712.22 = 47,911.60/x
  3. Step 3: Cross multiply
    88,198.74x = 121,712.22 × 47,911.60
  4. Step 4: Simplify right side
    88,198.74x = 5,831,427,351.89
  5. Step 5: Solve for x
    x = 5,831,427,351.89/88,198.74
  6. Step 6: Final answer
    x = 66,116.90

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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.