Home / 85,212.08-117,592.44-49,422.80

Finding the Fourth Proportional to 85,212.08, 117,592.44 and 49,422.80

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Solution

The fourth proportional to 85,212.08, 117,592.44 and 49,422.80 is: 68,203.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212.08 : 117,592.44 = 49,422.80 : x
  2. Step 2: Convert to fraction form
    85,212.08/117,592.44 = 49,422.80/x
  3. Step 3: Cross multiply
    85,212.08x = 117,592.44 × 49,422.80
  4. Step 4: Simplify right side
    85,212.08x = 5,811,747,643.63
  5. Step 5: Solve for x
    x = 5,811,747,643.63/85,212.08
  6. Step 6: Final answer
    x = 68,203.33

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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.