Home / 53,958.12-80,939.60-20,232.12

Finding the Fourth Proportional to 53,958.12, 80,939.60 and 20,232.12

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Solution

The fourth proportional to 53,958.12, 80,939.60 and 20,232.12 is: 30,349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,958.12 : 80,939.60 = 20,232.12 : x
  2. Step 2: Convert to fraction form
    53,958.12/80,939.60 = 20,232.12/x
  3. Step 3: Cross multiply
    53,958.12x = 80,939.60 × 20,232.12
  4. Step 4: Simplify right side
    53,958.12x = 1,637,579,699.95
  5. Step 5: Solve for x
    x = 1,637,579,699.95/53,958.12
  6. Step 6: Final answer
    x = 30,349.09

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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.