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Finding the Fourth Proportional to 70,977, 106,483.50 and 26,603.88

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Solution

The fourth proportional to 70,977, 106,483.50 and 26,603.88 is: 39,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,977 : 106,483.50 = 26,603.88 : x
  2. Step 2: Convert to fraction form
    70,977/106,483.50 = 26,603.88/x
  3. Step 3: Cross multiply
    70,977x = 106,483.50 × 26,603.88
  4. Step 4: Simplify right side
    70,977x = 2,832,874,255.98
  5. Step 5: Solve for x
    x = 2,832,874,255.98/70,977
  6. Step 6: Final answer
    x = 39,912.57

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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.