Home / 74,708.10-111,932.55-48,399.30

Finding the Fourth Proportional to 74,708.10, 111,932.55 and 48,399.30

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Solution

The fourth proportional to 74,708.10, 111,932.55 and 48,399.30 is: 72,514.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,708.10 : 111,932.55 = 48,399.30 : x
  2. Step 2: Convert to fraction form
    74,708.10/111,932.55 = 48,399.30/x
  3. Step 3: Cross multiply
    74,708.10x = 111,932.55 × 48,399.30
  4. Step 4: Simplify right side
    74,708.10x = 5,417,457,067.22
  5. Step 5: Solve for x
    x = 5,417,457,067.22/74,708.10
  6. Step 6: Final answer
    x = 72,514.99

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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.