Home / 91,786.48-137,674.08-54,583.30

Finding the Fourth Proportional to 91,786.48, 137,674.08 and 54,583.30

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Solution

The fourth proportional to 91,786.48, 137,674.08 and 54,583.30 is: 81,871.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,786.48 : 137,674.08 = 54,583.30 : x
  2. Step 2: Convert to fraction form
    91,786.48/137,674.08 = 54,583.30/x
  3. Step 3: Cross multiply
    91,786.48x = 137,674.08 × 54,583.30
  4. Step 4: Simplify right side
    91,786.48x = 7,514,705,610.86
  5. Step 5: Solve for x
    x = 7,514,705,610.86/91,786.48
  6. Step 6: Final answer
    x = 81,871.60

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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.