Home / 71,960.44-99,305.84-40,131.35

Finding the Fourth Proportional to 71,960.44, 99,305.84 and 40,131.35

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Solution

The fourth proportional to 71,960.44, 99,305.84 and 40,131.35 is: 55,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,960.44 : 99,305.84 = 40,131.35 : x
  2. Step 2: Convert to fraction form
    71,960.44/99,305.84 = 40,131.35/x
  3. Step 3: Cross multiply
    71,960.44x = 99,305.84 × 40,131.35
  4. Step 4: Simplify right side
    71,960.44x = 3,985,277,422.08
  5. Step 5: Solve for x
    x = 3,985,277,422.08/71,960.44
  6. Step 6: Final answer
    x = 55,381.50

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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.