Home / 67,040.31-100,582.32-31,975.41

Finding the Fourth Proportional to 67,040.31, 100,582.32 and 31,975.41

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Solution

The fourth proportional to 67,040.31, 100,582.32 and 31,975.41 is: 47,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,040.31 : 100,582.32 = 31,975.41 : x
  2. Step 2: Convert to fraction form
    67,040.31/100,582.32 = 31,975.41/x
  3. Step 3: Cross multiply
    67,040.31x = 100,582.32 × 31,975.41
  4. Step 4: Simplify right side
    67,040.31x = 3,216,160,920.75
  5. Step 5: Solve for x
    x = 3,216,160,920.75/67,040.31
  6. Step 6: Final answer
    x = 47,973.54

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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.