Home / 88,197.57-121,712.74-47,911.33

Finding the Fourth Proportional to 88,197.57, 121,712.74 and 47,911.33

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Solution

The fourth proportional to 88,197.57, 121,712.74 and 47,911.33 is: 66,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,197.57 : 121,712.74 = 47,911.33 : x
  2. Step 2: Convert to fraction form
    88,197.57/121,712.74 = 47,911.33/x
  3. Step 3: Cross multiply
    88,197.57x = 121,712.74 × 47,911.33
  4. Step 4: Simplify right side
    88,197.57x = 5,831,419,251.34
  5. Step 5: Solve for x
    x = 5,831,419,251.34/88,197.57
  6. Step 6: Final answer
    x = 66,117.69

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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.