Home / 55,563.36-76,690.80-31,704

Finding the Fourth Proportional to 55,563.36, 76,690.80 and 31,704

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Solution

The fourth proportional to 55,563.36, 76,690.80 and 31,704 is: 43,759.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,563.36 : 76,690.80 = 31,704 : x
  2. Step 2: Convert to fraction form
    55,563.36/76,690.80 = 31,704/x
  3. Step 3: Cross multiply
    55,563.36x = 76,690.80 × 31,704
  4. Step 4: Simplify right side
    55,563.36x = 2,431,405,123.20
  5. Step 5: Solve for x
    x = 2,431,405,123.20/55,563.36
  6. Step 6: Final answer
    x = 43,759.14

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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.