Home / 86,169.17-118,915.11-50,379.93

Finding the Fourth Proportional to 86,169.17, 118,915.11 and 50,379.93

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Solution

The fourth proportional to 86,169.17, 118,915.11 and 50,379.93 is: 69,525.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,169.17 : 118,915.11 = 50,379.93 : x
  2. Step 2: Convert to fraction form
    86,169.17/118,915.11 = 50,379.93/x
  3. Step 3: Cross multiply
    86,169.17x = 118,915.11 × 50,379.93
  4. Step 4: Simplify right side
    86,169.17x = 5,990,934,917.74
  5. Step 5: Solve for x
    x = 5,990,934,917.74/86,169.17
  6. Step 6: Final answer
    x = 69,525.28

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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.