Home / 55,311.03-76,329.69-30,160.53

Finding the Fourth Proportional to 55,311.03, 76,329.69 and 30,160.53

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Solution

The fourth proportional to 55,311.03, 76,329.69 and 30,160.53 is: 41,621.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,311.03 : 76,329.69 = 30,160.53 : x
  2. Step 2: Convert to fraction form
    55,311.03/76,329.69 = 30,160.53/x
  3. Step 3: Cross multiply
    55,311.03x = 76,329.69 × 30,160.53
  4. Step 4: Simplify right side
    55,311.03x = 2,302,143,905.14
  5. Step 5: Solve for x
    x = 2,302,143,905.14/55,311.03
  6. Step 6: Final answer
    x = 41,621.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.