Home / 97,939.61-146,905.31-31,378.27

Finding the Fourth Proportional to 97,939.61, 146,905.31 and 31,378.27

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Solution

The fourth proportional to 97,939.61, 146,905.31 and 31,378.27 is: 47,066.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,939.61 : 146,905.31 = 31,378.27 : x
  2. Step 2: Convert to fraction form
    97,939.61/146,905.31 = 31,378.27/x
  3. Step 3: Cross multiply
    97,939.61x = 146,905.31 × 31,378.27
  4. Step 4: Simplify right side
    97,939.61x = 4,609,634,481.61
  5. Step 5: Solve for x
    x = 4,609,634,481.61/97,939.61
  6. Step 6: Final answer
    x = 47,066.09

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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.