Home / 53,450.07-80,161.43-20,160.28

Finding the Fourth Proportional to 53,450.07, 80,161.43 and 20,160.28

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Solution

The fourth proportional to 53,450.07, 80,161.43 and 20,160.28 is: 30,235.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,450.07 : 80,161.43 = 20,160.28 : x
  2. Step 2: Convert to fraction form
    53,450.07/80,161.43 = 20,160.28/x
  3. Step 3: Cross multiply
    53,450.07x = 80,161.43 × 20,160.28
  4. Step 4: Simplify right side
    53,450.07x = 1,616,076,874.00
  5. Step 5: Solve for x
    x = 1,616,076,874.00/53,450.07
  6. Step 6: Final answer
    x = 30,235.26

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1.5x scale

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.