Home / 77,137.76-106,447.20-43,604.48

Finding the Fourth Proportional to 77,137.76, 106,447.20 and 43,604.48

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Solution

The fourth proportional to 77,137.76, 106,447.20 and 43,604.48 is: 60,172.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,137.76 : 106,447.20 = 43,604.48 : x
  2. Step 2: Convert to fraction form
    77,137.76/106,447.20 = 43,604.48/x
  3. Step 3: Cross multiply
    77,137.76x = 106,447.20 × 43,604.48
  4. Step 4: Simplify right side
    77,137.76x = 4,641,574,803.46
  5. Step 5: Solve for x
    x = 4,641,574,803.46/77,137.76
  6. Step 6: Final answer
    x = 60,172.54

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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.