Home / 53,409.16-80,120.22-18,356.68

Finding the Fourth Proportional to 53,409.16, 80,120.22 and 18,356.68

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Solution

The fourth proportional to 53,409.16, 80,120.22 and 18,356.68 is: 27,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,409.16 : 80,120.22 = 18,356.68 : x
  2. Step 2: Convert to fraction form
    53,409.16/80,120.22 = 18,356.68/x
  3. Step 3: Cross multiply
    53,409.16x = 80,120.22 × 18,356.68
  4. Step 4: Simplify right side
    53,409.16x = 1,470,741,240.07
  5. Step 5: Solve for x
    x = 1,470,741,240.07/53,409.16
  6. Step 6: Final answer
    x = 27,537.25

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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.