Home / 84,879.22-117,092.37-56,548.66

Finding the Fourth Proportional to 84,879.22, 117,092.37 and 56,548.66

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Solution

The fourth proportional to 84,879.22, 117,092.37 and 56,548.66 is: 78,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,879.22 : 117,092.37 = 56,548.66 : x
  2. Step 2: Convert to fraction form
    84,879.22/117,092.37 = 56,548.66/x
  3. Step 3: Cross multiply
    84,879.22x = 117,092.37 × 56,548.66
  4. Step 4: Simplify right side
    84,879.22x = 6,621,416,619.72
  5. Step 5: Solve for x
    x = 6,621,416,619.72/84,879.22
  6. Step 6: Final answer
    x = 78,009.87

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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.