Home / 89,724.03-134,364.45-66,873.09

Finding the Fourth Proportional to 89,724.03, 134,364.45 and 66,873.09

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Solution

The fourth proportional to 89,724.03, 134,364.45 and 66,873.09 is: 100,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,724.03 : 134,364.45 = 66,873.09 : x
  2. Step 2: Convert to fraction form
    89,724.03/134,364.45 = 66,873.09/x
  3. Step 3: Cross multiply
    89,724.03x = 134,364.45 × 66,873.09
  4. Step 4: Simplify right side
    89,724.03x = 8,985,365,957.65
  5. Step 5: Solve for x
    x = 8,985,365,957.65/89,724.03
  6. Step 6: Final answer
    x = 100,144.48

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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.