Home / 78,265.69-117,396.43-22,109.67

Finding the Fourth Proportional to 78,265.69, 117,396.43 and 22,109.67

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Solution

The fourth proportional to 78,265.69, 117,396.43 and 22,109.67 is: 33,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,265.69 : 117,396.43 = 22,109.67 : x
  2. Step 2: Convert to fraction form
    78,265.69/117,396.43 = 22,109.67/x
  3. Step 3: Cross multiply
    78,265.69x = 117,396.43 × 22,109.67
  4. Step 4: Simplify right side
    78,265.69x = 2,595,596,326.48
  5. Step 5: Solve for x
    x = 2,595,596,326.48/78,265.69
  6. Step 6: Final answer
    x = 33,163.91

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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.