Home / 49,768.12-68,690.10-28,561.96

Finding the Fourth Proportional to 49,768.12, 68,690.10 and 28,561.96

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Solution

The fourth proportional to 49,768.12, 68,690.10 and 28,561.96 is: 39,421.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,768.12 : 68,690.10 = 28,561.96 : x
  2. Step 2: Convert to fraction form
    49,768.12/68,690.10 = 28,561.96/x
  3. Step 3: Cross multiply
    49,768.12x = 68,690.10 × 28,561.96
  4. Step 4: Simplify right side
    49,768.12x = 1,961,923,888.60
  5. Step 5: Solve for x
    x = 1,961,923,888.60/49,768.12
  6. Step 6: Final answer
    x = 39,421.30

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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.