Home / 85,349.97-117,782.30-49,543.31

Finding the Fourth Proportional to 85,349.97, 117,782.30 and 49,543.31

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Solution

The fourth proportional to 85,349.97, 117,782.30 and 49,543.31 is: 68,369.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,349.97 : 117,782.30 = 49,543.31 : x
  2. Step 2: Convert to fraction form
    85,349.97/117,782.30 = 49,543.31/x
  3. Step 3: Cross multiply
    85,349.97x = 117,782.30 × 49,543.31
  4. Step 4: Simplify right side
    85,349.97x = 5,835,325,419.73
  5. Step 5: Solve for x
    x = 5,835,325,419.73/85,349.97
  6. Step 6: Final answer
    x = 68,369.39

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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.