Home / 74,704.67-112,122.74-39,191.36

Finding the Fourth Proportional to 74,704.67, 112,122.74 and 39,191.36

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Solution

The fourth proportional to 74,704.67, 112,122.74 and 39,191.36 is: 58,821.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704.67 : 112,122.74 = 39,191.36 : x
  2. Step 2: Convert to fraction form
    74,704.67/112,122.74 = 39,191.36/x
  3. Step 3: Cross multiply
    74,704.67x = 112,122.74 × 39,191.36
  4. Step 4: Simplify right side
    74,704.67x = 4,394,242,667.53
  5. Step 5: Solve for x
    x = 4,394,242,667.53/74,704.67
  6. Step 6: Final answer
    x = 58,821.53

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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.