Home / 74,148.67-111,239.41-40,851.60

Finding the Fourth Proportional to 74,148.67, 111,239.41 and 40,851.60

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Solution

The fourth proportional to 74,148.67, 111,239.41 and 40,851.60 is: 61,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,148.67 : 111,239.41 = 40,851.60 : x
  2. Step 2: Convert to fraction form
    74,148.67/111,239.41 = 40,851.60/x
  3. Step 3: Cross multiply
    74,148.67x = 111,239.41 × 40,851.60
  4. Step 4: Simplify right side
    74,148.67x = 4,544,307,881.56
  5. Step 5: Solve for x
    x = 4,544,307,881.56/74,148.67
  6. Step 6: Final answer
    x = 61,286.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.