Home / 73,135.57-109,681.61-31,015.03

Finding the Fourth Proportional to 73,135.57, 109,681.61 and 31,015.03

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Solution

The fourth proportional to 73,135.57, 109,681.61 and 31,015.03 is: 46,513.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,135.57 : 109,681.61 = 31,015.03 : x
  2. Step 2: Convert to fraction form
    73,135.57/109,681.61 = 31,015.03/x
  3. Step 3: Cross multiply
    73,135.57x = 109,681.61 × 31,015.03
  4. Step 4: Simplify right side
    73,135.57x = 3,401,777,721.12
  5. Step 5: Solve for x
    x = 3,401,777,721.12/73,135.57
  6. Step 6: Final answer
    x = 46,513.32

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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.