Home / 75,784.04-113,676.44-19,620.21

Finding the Fourth Proportional to 75,784.04, 113,676.44 and 19,620.21

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Solution

The fourth proportional to 75,784.04, 113,676.44 and 19,620.21 is: 29,430.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,784.04 : 113,676.44 = 19,620.21 : x
  2. Step 2: Convert to fraction form
    75,784.04/113,676.44 = 19,620.21/x
  3. Step 3: Cross multiply
    75,784.04x = 113,676.44 × 19,620.21
  4. Step 4: Simplify right side
    75,784.04x = 2,230,355,624.85
  5. Step 5: Solve for x
    x = 2,230,355,624.85/75,784.04
  6. Step 6: Final answer
    x = 29,430.41

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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.