Home / 55,771.09-83,656.13-13,651.36

Finding the Fourth Proportional to 55,771.09, 83,656.13 and 13,651.36

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Solution

The fourth proportional to 55,771.09, 83,656.13 and 13,651.36 is: 20,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,771.09 : 83,656.13 = 13,651.36 : x
  2. Step 2: Convert to fraction form
    55,771.09/83,656.13 = 13,651.36/x
  3. Step 3: Cross multiply
    55,771.09x = 83,656.13 × 13,651.36
  4. Step 4: Simplify right side
    55,771.09x = 1,142,019,669.44
  5. Step 5: Solve for x
    x = 1,142,019,669.44/55,771.09
  6. Step 6: Final answer
    x = 20,476.91

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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.