Home / 51,771.40-71,450.42-28,803.50

Finding the Fourth Proportional to 51,771.40, 71,450.42 and 28,803.50

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Solution

The fourth proportional to 51,771.40, 71,450.42 and 28,803.50 is: 39,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,771.40 : 71,450.42 = 28,803.50 : x
  2. Step 2: Convert to fraction form
    51,771.40/71,450.42 = 28,803.50/x
  3. Step 3: Cross multiply
    51,771.40x = 71,450.42 × 28,803.50
  4. Step 4: Simplify right side
    51,771.40x = 2,058,022,172.47
  5. Step 5: Solve for x
    x = 2,058,022,172.47/51,771.40
  6. Step 6: Final answer
    x = 39,752.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.