Home / 89,110.20-133,665.30-54,031.80

Finding the Fourth Proportional to 89,110.20, 133,665.30 and 54,031.80

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Solution

The fourth proportional to 89,110.20, 133,665.30 and 54,031.80 is: 81,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,110.20 : 133,665.30 = 54,031.80 : x
  2. Step 2: Convert to fraction form
    89,110.20/133,665.30 = 54,031.80/x
  3. Step 3: Cross multiply
    89,110.20x = 133,665.30 × 54,031.80
  4. Step 4: Simplify right side
    89,110.20x = 7,222,176,756.54
  5. Step 5: Solve for x
    x = 7,222,176,756.54/89,110.20
  6. Step 6: Final answer
    x = 81,047.70

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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.