Home / 86,161.72-118,909.20-50,355.67

Finding the Fourth Proportional to 86,161.72, 118,909.20 and 50,355.67

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Solution

The fourth proportional to 86,161.72, 118,909.20 and 50,355.67 is: 69,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,161.72 : 118,909.20 = 50,355.67 : x
  2. Step 2: Convert to fraction form
    86,161.72/118,909.20 = 50,355.67/x
  3. Step 3: Cross multiply
    86,161.72x = 118,909.20 × 50,355.67
  4. Step 4: Simplify right side
    86,161.72x = 5,987,752,435.16
  5. Step 5: Solve for x
    x = 5,987,752,435.16/86,161.72
  6. Step 6: Final answer
    x = 69,494.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.