Home / 54,808.08-82,212.16-13,255.12

Finding the Fourth Proportional to 54,808.08, 82,212.16 and 13,255.12

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Solution

The fourth proportional to 54,808.08, 82,212.16 and 13,255.12 is: 19,882.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,808.08 : 82,212.16 = 13,255.12 : x
  2. Step 2: Convert to fraction form
    54,808.08/82,212.16 = 13,255.12/x
  3. Step 3: Cross multiply
    54,808.08x = 82,212.16 × 13,255.12
  4. Step 4: Simplify right side
    54,808.08x = 1,089,732,046.26
  5. Step 5: Solve for x
    x = 1,089,732,046.26/54,808.08
  6. Step 6: Final answer
    x = 19,882.69

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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.