Home / 52,103.75-78,103.65-20,494.04

Finding the Fourth Proportional to 52,103.75, 78,103.65 and 20,494.04

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Solution

The fourth proportional to 52,103.75, 78,103.65 and 20,494.04 is: 30,720.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,103.75 : 78,103.65 = 20,494.04 : x
  2. Step 2: Convert to fraction form
    52,103.75/78,103.65 = 20,494.04/x
  3. Step 3: Cross multiply
    52,103.75x = 78,103.65 × 20,494.04
  4. Step 4: Simplify right side
    52,103.75x = 1,600,659,327.25
  5. Step 5: Solve for x
    x = 1,600,659,327.25/52,103.75
  6. Step 6: Final answer
    x = 30,720.62

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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.