Home / 75,245.72-103,753.96-47,985.44

Finding the Fourth Proportional to 75,245.72, 103,753.96 and 47,985.44

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Solution

The fourth proportional to 75,245.72, 103,753.96 and 47,985.44 is: 66,165.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,245.72 : 103,753.96 = 47,985.44 : x
  2. Step 2: Convert to fraction form
    75,245.72/103,753.96 = 47,985.44/x
  3. Step 3: Cross multiply
    75,245.72x = 103,753.96 × 47,985.44
  4. Step 4: Simplify right side
    75,245.72x = 4,978,679,422.34
  5. Step 5: Solve for x
    x = 4,978,679,422.34/75,245.72
  6. Step 6: Final answer
    x = 66,165.62

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Why These Related Problems?

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