Home / 89,209.97-133,815-26,880.47

Finding the Fourth Proportional to 89,209.97, 133,815 and 26,880.47

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Solution

The fourth proportional to 89,209.97, 133,815 and 26,880.47 is: 40,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,209.97 : 133,815 = 26,880.47 : x
  2. Step 2: Convert to fraction form
    89,209.97/133,815 = 26,880.47/x
  3. Step 3: Cross multiply
    89,209.97x = 133,815 × 26,880.47
  4. Step 4: Simplify right side
    89,209.97x = 3,597,010,093.05
  5. Step 5: Solve for x
    x = 3,597,010,093.05/89,209.97
  6. Step 6: Final answer
    x = 40,320.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.