Home / 89,287.44-133,789.72-72,566.80

Finding the Fourth Proportional to 89,287.44, 133,789.72 and 72,566.80

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Solution

The fourth proportional to 89,287.44, 133,789.72 and 72,566.80 is: 108,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,287.44 : 133,789.72 = 72,566.80 : x
  2. Step 2: Convert to fraction form
    89,287.44/133,789.72 = 72,566.80/x
  3. Step 3: Cross multiply
    89,287.44x = 133,789.72 × 72,566.80
  4. Step 4: Simplify right side
    89,287.44x = 9,708,691,853.30
  5. Step 5: Solve for x
    x = 9,708,691,853.30/89,287.44
  6. Step 6: Final answer
    x = 108,735.25

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1.5x scale

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.