Home / 71,997.98-99,356.94-40,167.81

Finding the Fourth Proportional to 71,997.98, 99,356.94 and 40,167.81

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Solution

The fourth proportional to 71,997.98, 99,356.94 and 40,167.81 is: 55,431.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,997.98 : 99,356.94 = 40,167.81 : x
  2. Step 2: Convert to fraction form
    71,997.98/99,356.94 = 40,167.81/x
  3. Step 3: Cross multiply
    71,997.98x = 99,356.94 × 40,167.81
  4. Step 4: Simplify right side
    71,997.98x = 3,990,950,688.10
  5. Step 5: Solve for x
    x = 3,990,950,688.10/71,997.98
  6. Step 6: Final answer
    x = 55,431.43

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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.