Home / 88,201.27-121,718.60-47,915.34

Finding the Fourth Proportional to 88,201.27, 121,718.60 and 47,915.34

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Solution

The fourth proportional to 88,201.27, 121,718.60 and 47,915.34 is: 66,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,201.27 : 121,718.60 = 47,915.34 : x
  2. Step 2: Convert to fraction form
    88,201.27/121,718.60 = 47,915.34/x
  3. Step 3: Cross multiply
    88,201.27x = 121,718.60 × 47,915.34
  4. Step 4: Simplify right side
    88,201.27x = 5,832,188,103.32
  5. Step 5: Solve for x
    x = 5,832,188,103.32/88,201.27
  6. Step 6: Final answer
    x = 66,123.63

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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.