Home / 53,718.96-80,615.16-18,658.32

Finding the Fourth Proportional to 53,718.96, 80,615.16 and 18,658.32

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Solution

The fourth proportional to 53,718.96, 80,615.16 and 18,658.32 is: 28,000.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,718.96 : 80,615.16 = 18,658.32 : x
  2. Step 2: Convert to fraction form
    53,718.96/80,615.16 = 18,658.32/x
  3. Step 3: Cross multiply
    53,718.96x = 80,615.16 × 18,658.32
  4. Step 4: Simplify right side
    53,718.96x = 1,504,143,452.13
  5. Step 5: Solve for x
    x = 1,504,143,452.13/53,718.96
  6. Step 6: Final answer
    x = 28,000.23

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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.