Home / 97,678.77-146,540.25-31,122.69

Finding the Fourth Proportional to 97,678.77, 146,540.25 and 31,122.69

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Solution

The fourth proportional to 97,678.77, 146,540.25 and 31,122.69 is: 46,691.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,678.77 : 146,540.25 = 31,122.69 : x
  2. Step 2: Convert to fraction form
    97,678.77/146,540.25 = 31,122.69/x
  3. Step 3: Cross multiply
    97,678.77x = 146,540.25 × 31,122.69
  4. Step 4: Simplify right side
    97,678.77x = 4,560,726,773.27
  5. Step 5: Solve for x
    x = 4,560,726,773.27/97,678.77
  6. Step 6: Final answer
    x = 46,691.07

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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.