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Finding the Fourth Proportional to 71,973.98, 99,324.24 and 40,144.94

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Solution

The fourth proportional to 71,973.98, 99,324.24 and 40,144.94 is: 55,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.98 : 99,324.24 = 40,144.94 : x
  2. Step 2: Convert to fraction form
    71,973.98/99,324.24 = 40,144.94/x
  3. Step 3: Cross multiply
    71,973.98x = 99,324.24 × 40,144.94
  4. Step 4: Simplify right side
    71,973.98x = 3,987,365,454.62
  5. Step 5: Solve for x
    x = 3,987,365,454.62/71,973.98
  6. Step 6: Final answer
    x = 55,400.10

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1.5x scale

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.