Home / 67,038.31-100,579.32-31,973.41

Finding the Fourth Proportional to 67,038.31, 100,579.32 and 31,973.41

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Solution

The fourth proportional to 67,038.31, 100,579.32 and 31,973.41 is: 47,970.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,038.31 : 100,579.32 = 31,973.41 : x
  2. Step 2: Convert to fraction form
    67,038.31/100,579.32 = 31,973.41/x
  3. Step 3: Cross multiply
    67,038.31x = 100,579.32 × 31,973.41
  4. Step 4: Simplify right side
    67,038.31x = 3,215,863,835.88
  5. Step 5: Solve for x
    x = 3,215,863,835.88/67,038.31
  6. Step 6: Final answer
    x = 47,970.54

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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.