Home / 47,991.12-72,029.43-47,812.50

Finding the Fourth Proportional to 47,991.12, 72,029.43 and 47,812.50

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Solution

The fourth proportional to 47,991.12, 72,029.43 and 47,812.50 is: 71,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,991.12 : 72,029.43 = 47,812.50 : x
  2. Step 2: Convert to fraction form
    47,991.12/72,029.43 = 47,812.50/x
  3. Step 3: Cross multiply
    47,991.12x = 72,029.43 × 47,812.50
  4. Step 4: Simplify right side
    47,991.12x = 3,443,907,121.88
  5. Step 5: Solve for x
    x = 3,443,907,121.88/47,991.12
  6. Step 6: Final answer
    x = 71,761.34

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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.