Home / 82,066.34-123,112.64-34,681.89

Finding the Fourth Proportional to 82,066.34, 123,112.64 and 34,681.89

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Solution

The fourth proportional to 82,066.34, 123,112.64 and 34,681.89 is: 52,028.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,066.34 : 123,112.64 = 34,681.89 : x
  2. Step 2: Convert to fraction form
    82,066.34/123,112.64 = 34,681.89/x
  3. Step 3: Cross multiply
    82,066.34x = 123,112.64 × 34,681.89
  4. Step 4: Simplify right side
    82,066.34x = 4,269,778,864.68
  5. Step 5: Solve for x
    x = 4,269,778,864.68/82,066.34
  6. Step 6: Final answer
    x = 52,028.38

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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.