Home / 82,072.04-123,108.05-19,742.54

Finding the Fourth Proportional to 82,072.04, 123,108.05 and 19,742.54

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Solution

The fourth proportional to 82,072.04, 123,108.05 and 19,742.54 is: 29,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,072.04 : 123,108.05 = 19,742.54 : x
  2. Step 2: Convert to fraction form
    82,072.04/123,108.05 = 19,742.54/x
  3. Step 3: Cross multiply
    82,072.04x = 123,108.05 × 19,742.54
  4. Step 4: Simplify right side
    82,072.04x = 2,430,465,035.26
  5. Step 5: Solve for x
    x = 2,430,465,035.26/82,072.04
  6. Step 6: Final answer
    x = 29,613.80

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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.