Home / 75,112.50-103,626.63-49,630.98

Finding the Fourth Proportional to 75,112.50, 103,626.63 and 49,630.98

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Solution

The fourth proportional to 75,112.50, 103,626.63 and 49,630.98 is: 68,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,112.50 : 103,626.63 = 49,630.98 : x
  2. Step 2: Convert to fraction form
    75,112.50/103,626.63 = 49,630.98/x
  3. Step 3: Cross multiply
    75,112.50x = 103,626.63 × 49,630.98
  4. Step 4: Simplify right side
    75,112.50x = 5,143,091,201.00
  5. Step 5: Solve for x
    x = 5,143,091,201.00/75,112.50
  6. Step 6: Final answer
    x = 68,471.84

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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.