Home / 55,418.80-83,128.44-15,976.72

Finding the Fourth Proportional to 55,418.80, 83,128.44 and 15,976.72

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Solution

The fourth proportional to 55,418.80, 83,128.44 and 15,976.72 is: 23,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,418.80 : 83,128.44 = 15,976.72 : x
  2. Step 2: Convert to fraction form
    55,418.80/83,128.44 = 15,976.72/x
  3. Step 3: Cross multiply
    55,418.80x = 83,128.44 × 15,976.72
  4. Step 4: Simplify right side
    55,418.80x = 1,328,119,809.92
  5. Step 5: Solve for x
    x = 1,328,119,809.92/55,418.80
  6. Step 6: Final answer
    x = 23,965.15

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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.