Home / 71,999.18-99,361.58-40,174.22

Finding the Fourth Proportional to 71,999.18, 99,361.58 and 40,174.22

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Solution

The fourth proportional to 71,999.18, 99,361.58 and 40,174.22 is: 55,441.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,999.18 : 99,361.58 = 40,174.22 : x
  2. Step 2: Convert to fraction form
    71,999.18/99,361.58 = 40,174.22/x
  3. Step 3: Cross multiply
    71,999.18x = 99,361.58 × 40,174.22
  4. Step 4: Simplify right side
    71,999.18x = 3,991,773,974.47
  5. Step 5: Solve for x
    x = 3,991,773,974.47/71,999.18
  6. Step 6: Final answer
    x = 55,441.94

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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.