Home / 89,172.54-123,057.09-51,445.98

Finding the Fourth Proportional to 89,172.54, 123,057.09 and 51,445.98

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Solution

The fourth proportional to 89,172.54, 123,057.09 and 51,445.98 is: 70,994.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,172.54 : 123,057.09 = 51,445.98 : x
  2. Step 2: Convert to fraction form
    89,172.54/123,057.09 = 51,445.98/x
  3. Step 3: Cross multiply
    89,172.54x = 123,057.09 × 51,445.98
  4. Step 4: Simplify right side
    89,172.54x = 6,330,792,591.00
  5. Step 5: Solve for x
    x = 6,330,792,591.00/89,172.54
  6. Step 6: Final answer
    x = 70,994.87

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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.