Home / 89,256.36-123,172.70-48,970.46

Finding the Fourth Proportional to 89,256.36, 123,172.70 and 48,970.46

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Solution

The fourth proportional to 89,256.36, 123,172.70 and 48,970.46 is: 67,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,256.36 : 123,172.70 = 48,970.46 : x
  2. Step 2: Convert to fraction form
    89,256.36/123,172.70 = 48,970.46/x
  3. Step 3: Cross multiply
    89,256.36x = 123,172.70 × 48,970.46
  4. Step 4: Simplify right side
    89,256.36x = 6,031,823,778.44
  5. Step 5: Solve for x
    x = 6,031,823,778.44/89,256.36
  6. Step 6: Final answer
    x = 67,578.64

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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.