Home / 89,296.40-133,750.20-54,174.80

Finding the Fourth Proportional to 89,296.40, 133,750.20 and 54,174.80

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Solution

The fourth proportional to 89,296.40, 133,750.20 and 54,174.80 is: 81,144.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,296.40 : 133,750.20 = 54,174.80 : x
  2. Step 2: Convert to fraction form
    89,296.40/133,750.20 = 54,174.80/x
  3. Step 3: Cross multiply
    89,296.40x = 133,750.20 × 54,174.80
  4. Step 4: Simplify right side
    89,296.40x = 7,245,890,334.96
  5. Step 5: Solve for x
    x = 7,245,890,334.96/89,296.40
  6. Step 6: Final answer
    x = 81,144.26

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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.