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Finding the Fourth Proportional to 90,083.88, 134,791.01 and 56,647.62

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Solution

The fourth proportional to 90,083.88, 134,791.01 and 56,647.62 is: 84,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,083.88 : 134,791.01 = 56,647.62 : x
  2. Step 2: Convert to fraction form
    90,083.88/134,791.01 = 56,647.62/x
  3. Step 3: Cross multiply
    90,083.88x = 134,791.01 × 56,647.62
  4. Step 4: Simplify right side
    90,083.88x = 7,635,589,630.66
  5. Step 5: Solve for x
    x = 7,635,589,630.66/90,083.88
  6. Step 6: Final answer
    x = 84,760.89

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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.