Home / 82,073.04-123,109.55-19,743.54

Finding the Fourth Proportional to 82,073.04, 123,109.55 and 19,743.54

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Solution

The fourth proportional to 82,073.04, 123,109.55 and 19,743.54 is: 29,615.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,073.04 : 123,109.55 = 19,743.54 : x
  2. Step 2: Convert to fraction form
    82,073.04/123,109.55 = 19,743.54/x
  3. Step 3: Cross multiply
    82,073.04x = 123,109.55 × 19,743.54
  4. Step 4: Simplify right side
    82,073.04x = 2,430,618,324.81
  5. Step 5: Solve for x
    x = 2,430,618,324.81/82,073.04
  6. Step 6: Final answer
    x = 29,615.31

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Similar ratio
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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.