Home / 55,914.04-83,885.64-20,854

Finding the Fourth Proportional to 55,914.04, 83,885.64 and 20,854

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Solution

The fourth proportional to 55,914.04, 83,885.64 and 20,854 is: 31,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,914.04 : 83,885.64 = 20,854 : x
  2. Step 2: Convert to fraction form
    55,914.04/83,885.64 = 20,854/x
  3. Step 3: Cross multiply
    55,914.04x = 83,885.64 × 20,854
  4. Step 4: Simplify right side
    55,914.04x = 1,749,351,136.56
  5. Step 5: Solve for x
    x = 1,749,351,136.56/55,914.04
  6. Step 6: Final answer
    x = 31,286.44

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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.