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Finding the Fourth Proportional to 55,496.81, 83,231.37 and 21,769.68

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Solution

The fourth proportional to 55,496.81, 83,231.37 and 21,769.68 is: 32,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,496.81 : 83,231.37 = 21,769.68 : x
  2. Step 2: Convert to fraction form
    55,496.81/83,231.37 = 21,769.68/x
  3. Step 3: Cross multiply
    55,496.81x = 83,231.37 × 21,769.68
  4. Step 4: Simplify right side
    55,496.81x = 1,811,920,134.80
  5. Step 5: Solve for x
    x = 1,811,920,134.80/55,496.81
  6. Step 6: Final answer
    x = 32,649.09

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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.