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Finding the Fourth Proportional to 89,706.75, 123,800.99 and 49,420.59

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Solution

The fourth proportional to 89,706.75, 123,800.99 and 49,420.59 is: 68,203.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,706.75 : 123,800.99 = 49,420.59 : x
  2. Step 2: Convert to fraction form
    89,706.75/123,800.99 = 49,420.59/x
  3. Step 3: Cross multiply
    89,706.75x = 123,800.99 × 49,420.59
  4. Step 4: Simplify right side
    89,706.75x = 6,118,317,721.28
  5. Step 5: Solve for x
    x = 6,118,317,721.28/89,706.75
  6. Step 6: Final answer
    x = 68,203.54

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1.5x scale

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.