Home / 53,400.72-80,101.08-20,128.26

Finding the Fourth Proportional to 53,400.72, 80,101.08 and 20,128.26

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Solution

The fourth proportional to 53,400.72, 80,101.08 and 20,128.26 is: 30,192.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,400.72 : 80,101.08 = 20,128.26 : x
  2. Step 2: Convert to fraction form
    53,400.72/80,101.08 = 20,128.26/x
  3. Step 3: Cross multiply
    53,400.72x = 80,101.08 × 20,128.26
  4. Step 4: Simplify right side
    53,400.72x = 1,612,295,364.52
  5. Step 5: Solve for x
    x = 1,612,295,364.52/53,400.72
  6. Step 6: Final answer
    x = 30,192.39

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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.