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Finding the Fourth Proportional to 58,791.72, 81,112.64 and 38,647.02

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Solution

The fourth proportional to 58,791.72, 81,112.64 and 38,647.02 is: 53,319.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,791.72 : 81,112.64 = 38,647.02 : x
  2. Step 2: Convert to fraction form
    58,791.72/81,112.64 = 38,647.02/x
  3. Step 3: Cross multiply
    58,791.72x = 81,112.64 × 38,647.02
  4. Step 4: Simplify right side
    58,791.72x = 3,134,761,820.33
  5. Step 5: Solve for x
    x = 3,134,761,820.33/58,791.72
  6. Step 6: Final answer
    x = 53,319.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.