Home / 53,933.69-80,912.21-20,653.75

Finding the Fourth Proportional to 53,933.69, 80,912.21 and 20,653.75

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Solution

The fourth proportional to 53,933.69, 80,912.21 and 20,653.75 is: 30,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,933.69 : 80,912.21 = 20,653.75 : x
  2. Step 2: Convert to fraction form
    53,933.69/80,912.21 = 20,653.75/x
  3. Step 3: Cross multiply
    53,933.69x = 80,912.21 × 20,653.75
  4. Step 4: Simplify right side
    53,933.69x = 1,671,140,613.25
  5. Step 5: Solve for x
    x = 1,671,140,613.25/53,933.69
  6. Step 6: Final answer
    x = 30,985.10

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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.