Home / 89,706.25-123,800.30-49,420.09

Finding the Fourth Proportional to 89,706.25, 123,800.30 and 49,420.09

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Solution

The fourth proportional to 89,706.25, 123,800.30 and 49,420.09 is: 68,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,706.25 : 123,800.30 = 49,420.09 : x
  2. Step 2: Convert to fraction form
    89,706.25/123,800.30 = 49,420.09/x
  3. Step 3: Cross multiply
    89,706.25x = 123,800.30 × 49,420.09
  4. Step 4: Simplify right side
    89,706.25x = 6,118,221,968.03
  5. Step 5: Solve for x
    x = 6,118,221,968.03/89,706.25
  6. Step 6: Final answer
    x = 68,202.85

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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.