Home / 115,083.90-172,611.81-30,850.38

Finding the Fourth Proportional to 115,083.90, 172,611.81 and 30,850.38

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Solution

The fourth proportional to 115,083.90, 172,611.81 and 30,850.38 is: 46,271.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,083.90 : 172,611.81 = 30,850.38 : x
  2. Step 2: Convert to fraction form
    115,083.90/172,611.81 = 30,850.38/x
  3. Step 3: Cross multiply
    115,083.90x = 172,611.81 × 30,850.38
  4. Step 4: Simplify right side
    115,083.90x = 5,325,139,930.99
  5. Step 5: Solve for x
    x = 5,325,139,930.99/115,083.90
  6. Step 6: Final answer
    x = 46,271.81

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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.