Home / 53,718.75-80,615.25-18,658.44

Finding the Fourth Proportional to 53,718.75, 80,615.25 and 18,658.44

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Solution

The fourth proportional to 53,718.75, 80,615.25 and 18,658.44 is: 28,000.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,718.75 : 80,615.25 = 18,658.44 : x
  2. Step 2: Convert to fraction form
    53,718.75/80,615.25 = 18,658.44/x
  3. Step 3: Cross multiply
    53,718.75x = 80,615.25 × 18,658.44
  4. Step 4: Simplify right side
    53,718.75x = 1,504,154,805.21
  5. Step 5: Solve for x
    x = 1,504,154,805.21/53,718.75
  6. Step 6: Final answer
    x = 28,000.55

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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.