Home / 55,958.85-83,935.60-13,838.78

Finding the Fourth Proportional to 55,958.85, 83,935.60 and 13,838.78

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Solution

The fourth proportional to 55,958.85, 83,935.60 and 13,838.78 is: 20,757.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,958.85 : 83,935.60 = 13,838.78 : x
  2. Step 2: Convert to fraction form
    55,958.85/83,935.60 = 13,838.78/x
  3. Step 3: Cross multiply
    55,958.85x = 83,935.60 × 13,838.78
  4. Step 4: Simplify right side
    55,958.85x = 1,161,566,302.57
  5. Step 5: Solve for x
    x = 1,161,566,302.57/55,958.85
  6. Step 6: Final answer
    x = 20,757.51

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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.