Home / 53,854.90-80,816.03-20,577.80

Finding the Fourth Proportional to 53,854.90, 80,816.03 and 20,577.80

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Solution

The fourth proportional to 53,854.90, 80,816.03 and 20,577.80 is: 30,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,854.90 : 80,816.03 = 20,577.80 : x
  2. Step 2: Convert to fraction form
    53,854.90/80,816.03 = 20,577.80/x
  3. Step 3: Cross multiply
    53,854.90x = 80,816.03 × 20,577.80
  4. Step 4: Simplify right side
    53,854.90x = 1,663,016,102.13
  5. Step 5: Solve for x
    x = 1,663,016,102.13/53,854.90
  6. Step 6: Final answer
    x = 30,879.57

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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.