Home / 55,813.36-83,720.24-13,693.72

Finding the Fourth Proportional to 55,813.36, 83,720.24 and 13,693.72

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Solution

The fourth proportional to 55,813.36, 83,720.24 and 13,693.72 is: 20,540.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,813.36 : 83,720.24 = 13,693.72 : x
  2. Step 2: Convert to fraction form
    55,813.36/83,720.24 = 13,693.72/x
  3. Step 3: Cross multiply
    55,813.36x = 83,720.24 × 13,693.72
  4. Step 4: Simplify right side
    55,813.36x = 1,146,441,524.89
  5. Step 5: Solve for x
    x = 1,146,441,524.89/55,813.36
  6. Step 6: Final answer
    x = 20,540.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.