Home / 50,975.45-70,343.74-28,315.90

Finding the Fourth Proportional to 50,975.45, 70,343.74 and 28,315.90

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Solution

The fourth proportional to 50,975.45, 70,343.74 and 28,315.90 is: 39,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,975.45 : 70,343.74 = 28,315.90 : x
  2. Step 2: Convert to fraction form
    50,975.45/70,343.74 = 28,315.90/x
  3. Step 3: Cross multiply
    50,975.45x = 70,343.74 × 28,315.90
  4. Step 4: Simplify right side
    50,975.45x = 1,991,846,307.47
  5. Step 5: Solve for x
    x = 1,991,846,307.47/50,975.45
  6. Step 6: Final answer
    x = 39,074.62

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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.