Home / 80,883.21-111,617.29-45,072.43

Finding the Fourth Proportional to 80,883.21, 111,617.29 and 45,072.43

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Solution

The fourth proportional to 80,883.21, 111,617.29 and 45,072.43 is: 62,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,883.21 : 111,617.29 = 45,072.43 : x
  2. Step 2: Convert to fraction form
    80,883.21/111,617.29 = 45,072.43/x
  3. Step 3: Cross multiply
    80,883.21x = 111,617.29 × 45,072.43
  4. Step 4: Simplify right side
    80,883.21x = 5,030,862,490.31
  5. Step 5: Solve for x
    x = 5,030,862,490.31/80,883.21
  6. Step 6: Final answer
    x = 62,199.10

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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.