Home / 88,189.11-121,696.83-49,947.75

Finding the Fourth Proportional to 88,189.11, 121,696.83 and 49,947.75

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Solution

The fourth proportional to 88,189.11, 121,696.83 and 49,947.75 is: 68,925.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,189.11 : 121,696.83 = 49,947.75 : x
  2. Step 2: Convert to fraction form
    88,189.11/121,696.83 = 49,947.75/x
  3. Step 3: Cross multiply
    88,189.11x = 121,696.83 × 49,947.75
  4. Step 4: Simplify right side
    88,189.11x = 6,078,482,840.63
  5. Step 5: Solve for x
    x = 6,078,482,840.63/88,189.11
  6. Step 6: Final answer
    x = 68,925.55

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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.