Home / 71,975.08-99,325.79-40,146.04

Finding the Fourth Proportional to 71,975.08, 99,325.79 and 40,146.04

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Solution

The fourth proportional to 71,975.08, 99,325.79 and 40,146.04 is: 55,401.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,975.08 : 99,325.79 = 40,146.04 : x
  2. Step 2: Convert to fraction form
    71,975.08/99,325.79 = 40,146.04/x
  3. Step 3: Cross multiply
    71,975.08x = 99,325.79 × 40,146.04
  4. Step 4: Simplify right side
    71,975.08x = 3,987,537,138.37
  5. Step 5: Solve for x
    x = 3,987,537,138.37/71,975.08
  6. Step 6: Final answer
    x = 55,401.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.