Home / 55,150.56-76,107.84-30,000

Finding the Fourth Proportional to 55,150.56, 76,107.84 and 30,000

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Solution

The fourth proportional to 55,150.56, 76,107.84 and 30,000 is: 41,400.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,150.56 : 76,107.84 = 30,000 : x
  2. Step 2: Convert to fraction form
    55,150.56/76,107.84 = 30,000/x
  3. Step 3: Cross multiply
    55,150.56x = 76,107.84 × 30,000
  4. Step 4: Simplify right side
    55,150.56x = 2,283,235,200
  5. Step 5: Solve for x
    x = 2,283,235,200/55,150.56
  6. Step 6: Final answer
    x = 41,400.04

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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.