Home / 72,829.85-109,257.26-33,390.35

Finding the Fourth Proportional to 72,829.85, 109,257.26 and 33,390.35

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Solution

The fourth proportional to 72,829.85, 109,257.26 and 33,390.35 is: 50,091.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,829.85 : 109,257.26 = 33,390.35 : x
  2. Step 2: Convert to fraction form
    72,829.85/109,257.26 = 33,390.35/x
  3. Step 3: Cross multiply
    72,829.85x = 109,257.26 × 33,390.35
  4. Step 4: Simplify right side
    72,829.85x = 3,648,137,438.20
  5. Step 5: Solve for x
    x = 3,648,137,438.20/72,829.85
  6. Step 6: Final answer
    x = 50,091.24

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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.