Home / 74,142.47-111,160.85-34,678.06

Finding the Fourth Proportional to 74,142.47, 111,160.85 and 34,678.06

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Solution

The fourth proportional to 74,142.47, 111,160.85 and 34,678.06 is: 51,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,142.47 : 111,160.85 = 34,678.06 : x
  2. Step 2: Convert to fraction form
    74,142.47/111,160.85 = 34,678.06/x
  3. Step 3: Cross multiply
    74,142.47x = 111,160.85 × 34,678.06
  4. Step 4: Simplify right side
    74,142.47x = 3,854,842,174.66
  5. Step 5: Solve for x
    x = 3,854,842,174.66/74,142.47
  6. Step 6: Final answer
    x = 51,992.36

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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.