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Finding the Fourth Proportional to 88,187.53, 121,700.35 and 49,954.95

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Solution

The fourth proportional to 88,187.53, 121,700.35 and 49,954.95 is: 68,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,187.53 : 121,700.35 = 49,954.95 : x
  2. Step 2: Convert to fraction form
    88,187.53/121,700.35 = 49,954.95/x
  3. Step 3: Cross multiply
    88,187.53x = 121,700.35 × 49,954.95
  4. Step 4: Simplify right side
    88,187.53x = 6,079,535,078.60
  5. Step 5: Solve for x
    x = 6,079,535,078.60/88,187.53
  6. Step 6: Final answer
    x = 68,938.72

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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.