Home / 66,933.89-100,351.62-31,898.15

Finding the Fourth Proportional to 66,933.89, 100,351.62 and 31,898.15

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Solution

The fourth proportional to 66,933.89, 100,351.62 and 31,898.15 is: 47,823.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,933.89 : 100,351.62 = 31,898.15 : x
  2. Step 2: Convert to fraction form
    66,933.89/100,351.62 = 31,898.15/x
  3. Step 3: Cross multiply
    66,933.89x = 100,351.62 × 31,898.15
  4. Step 4: Simplify right side
    66,933.89x = 3,201,030,525.74
  5. Step 5: Solve for x
    x = 3,201,030,525.74/66,933.89
  6. Step 6: Final answer
    x = 47,823.77

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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.