Home / 78,069.96-117,170.55-33,730.56

Finding the Fourth Proportional to 78,069.96, 117,170.55 and 33,730.56

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Solution

The fourth proportional to 78,069.96, 117,170.55 and 33,730.56 is: 50,624.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,069.96 : 117,170.55 = 33,730.56 : x
  2. Step 2: Convert to fraction form
    78,069.96/117,170.55 = 33,730.56/x
  3. Step 3: Cross multiply
    78,069.96x = 117,170.55 × 33,730.56
  4. Step 4: Simplify right side
    78,069.96x = 3,952,228,267.01
  5. Step 5: Solve for x
    x = 3,952,228,267.01/78,069.96
  6. Step 6: Final answer
    x = 50,624.19

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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.