Home / 39,980.04-60,072.12-30,211.44

Finding the Fourth Proportional to 39,980.04, 60,072.12 and 30,211.44

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Solution

The fourth proportional to 39,980.04, 60,072.12 and 30,211.44 is: 45,394.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,980.04 : 60,072.12 = 30,211.44 : x
  2. Step 2: Convert to fraction form
    39,980.04/60,072.12 = 30,211.44/x
  3. Step 3: Cross multiply
    39,980.04x = 60,072.12 × 30,211.44
  4. Step 4: Simplify right side
    39,980.04x = 1,814,865,249.05
  5. Step 5: Solve for x
    x = 1,814,865,249.05/39,980.04
  6. Step 6: Final answer
    x = 45,394.28

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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.