Home / 55,769.28-83,623.68-18,320.64

Finding the Fourth Proportional to 55,769.28, 83,623.68 and 18,320.64

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Solution

The fourth proportional to 55,769.28, 83,623.68 and 18,320.64 is: 27,471.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,769.28 : 83,623.68 = 18,320.64 : x
  2. Step 2: Convert to fraction form
    55,769.28/83,623.68 = 18,320.64/x
  3. Step 3: Cross multiply
    55,769.28x = 83,623.68 × 18,320.64
  4. Step 4: Simplify right side
    55,769.28x = 1,532,039,336.76
  5. Step 5: Solve for x
    x = 1,532,039,336.76/55,769.28
  6. Step 6: Final answer
    x = 27,471.03

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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.