Home / 53,909.80-80,867.10-18,370.60

Finding the Fourth Proportional to 53,909.80, 80,867.10 and 18,370.60

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Solution

The fourth proportional to 53,909.80, 80,867.10 and 18,370.60 is: 27,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,909.80 : 80,867.10 = 18,370.60 : x
  2. Step 2: Convert to fraction form
    53,909.80/80,867.10 = 18,370.60/x
  3. Step 3: Cross multiply
    53,909.80x = 80,867.10 × 18,370.60
  4. Step 4: Simplify right side
    53,909.80x = 1,485,577,147.26
  5. Step 5: Solve for x
    x = 1,485,577,147.26/53,909.80
  6. Step 6: Final answer
    x = 27,556.72

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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.