Home / 55,639.09-83,458.64-13,518.96

Finding the Fourth Proportional to 55,639.09, 83,458.64 and 13,518.96

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Solution

The fourth proportional to 55,639.09, 83,458.64 and 13,518.96 is: 20,278.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,639.09 : 83,458.64 = 13,518.96 : x
  2. Step 2: Convert to fraction form
    55,639.09/83,458.64 = 13,518.96/x
  3. Step 3: Cross multiply
    55,639.09x = 83,458.64 × 13,518.96
  4. Step 4: Simplify right side
    55,639.09x = 1,128,273,530.93
  5. Step 5: Solve for x
    x = 1,128,273,530.93/55,639.09
  6. Step 6: Final answer
    x = 20,278.43

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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.