Home / 74,052.82-102,190.35-42,231.96

Finding the Fourth Proportional to 74,052.82, 102,190.35 and 42,231.96

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Solution

The fourth proportional to 74,052.82, 102,190.35 and 42,231.96 is: 58,278.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,052.82 : 102,190.35 = 42,231.96 : x
  2. Step 2: Convert to fraction form
    74,052.82/102,190.35 = 42,231.96/x
  3. Step 3: Cross multiply
    74,052.82x = 102,190.35 × 42,231.96
  4. Step 4: Simplify right side
    74,052.82x = 4,315,698,773.59
  5. Step 5: Solve for x
    x = 4,315,698,773.59/74,052.82
  6. Step 6: Final answer
    x = 58,278.66

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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.