Home / 75,110.50-103,623.87-49,628.98

Finding the Fourth Proportional to 75,110.50, 103,623.87 and 49,628.98

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Solution

The fourth proportional to 75,110.50, 103,623.87 and 49,628.98 is: 68,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,110.50 : 103,623.87 = 49,628.98 : x
  2. Step 2: Convert to fraction form
    75,110.50/103,623.87 = 49,628.98/x
  3. Step 3: Cross multiply
    75,110.50x = 103,623.87 × 49,628.98
  4. Step 4: Simplify right side
    75,110.50x = 5,142,746,971.75
  5. Step 5: Solve for x
    x = 5,142,746,971.75/75,110.50
  6. Step 6: Final answer
    x = 68,469.08

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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.