Home / 85,942.66-118,608.02-47,705.80

Finding the Fourth Proportional to 85,942.66, 118,608.02 and 47,705.80

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Solution

The fourth proportional to 85,942.66, 118,608.02 and 47,705.80 is: 65,837.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,942.66 : 118,608.02 = 47,705.80 : x
  2. Step 2: Convert to fraction form
    85,942.66/118,608.02 = 47,705.80/x
  3. Step 3: Cross multiply
    85,942.66x = 118,608.02 × 47,705.80
  4. Step 4: Simplify right side
    85,942.66x = 5,658,290,241.99
  5. Step 5: Solve for x
    x = 5,658,290,241.99/85,942.66
  6. Step 6: Final answer
    x = 65,837.97

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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.