Home / 55,412.89-83,127.53-20,349.81

Finding the Fourth Proportional to 55,412.89, 83,127.53 and 20,349.81

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Solution

The fourth proportional to 55,412.89, 83,127.53 and 20,349.81 is: 30,527.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,412.89 : 83,127.53 = 20,349.81 : x
  2. Step 2: Convert to fraction form
    55,412.89/83,127.53 = 20,349.81/x
  3. Step 3: Cross multiply
    55,412.89x = 83,127.53 × 20,349.81
  4. Step 4: Simplify right side
    55,412.89x = 1,691,629,441.27
  5. Step 5: Solve for x
    x = 1,691,629,441.27/55,412.89
  6. Step 6: Final answer
    x = 30,527.72

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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.