Home / 89,297.40-133,751.70-54,175.80

Finding the Fourth Proportional to 89,297.40, 133,751.70 and 54,175.80

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Solution

The fourth proportional to 89,297.40, 133,751.70 and 54,175.80 is: 81,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,297.40 : 133,751.70 = 54,175.80 : x
  2. Step 2: Convert to fraction form
    89,297.40/133,751.70 = 54,175.80/x
  3. Step 3: Cross multiply
    89,297.40x = 133,751.70 × 54,175.80
  4. Step 4: Simplify right side
    89,297.40x = 7,246,105,348.86
  5. Step 5: Solve for x
    x = 7,246,105,348.86/89,297.40
  6. Step 6: Final answer
    x = 81,145.76

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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.