Home / 71,915.66-99,231.75-41,688.60

Finding the Fourth Proportional to 71,915.66, 99,231.75 and 41,688.60

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Solution

The fourth proportional to 71,915.66, 99,231.75 and 41,688.60 is: 57,523.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,915.66 : 99,231.75 = 41,688.60 : x
  2. Step 2: Convert to fraction form
    71,915.66/99,231.75 = 41,688.60/x
  3. Step 3: Cross multiply
    71,915.66x = 99,231.75 × 41,688.60
  4. Step 4: Simplify right side
    71,915.66x = 4,136,832,236.89
  5. Step 5: Solve for x
    x = 4,136,832,236.89/71,915.66
  6. Step 6: Final answer
    x = 57,523.39

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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.