Home / 85,365.18-117,825.09-51,859.26

Finding the Fourth Proportional to 85,365.18, 117,825.09 and 51,859.26

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Solution

The fourth proportional to 85,365.18, 117,825.09 and 51,859.26 is: 71,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,365.18 : 117,825.09 = 51,859.26 : x
  2. Step 2: Convert to fraction form
    85,365.18/117,825.09 = 51,859.26/x
  3. Step 3: Cross multiply
    85,365.18x = 117,825.09 × 51,859.26
  4. Step 4: Simplify right side
    85,365.18x = 6,110,321,976.83
  5. Step 5: Solve for x
    x = 6,110,321,976.83/85,365.18
  6. Step 6: Final answer
    x = 71,578.62

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1.5x scale

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.