Home / 51,481.76-71,041.53-28,816.94

Finding the Fourth Proportional to 51,481.76, 71,041.53 and 28,816.94

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Solution

The fourth proportional to 51,481.76, 71,041.53 and 28,816.94 is: 39,765.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,481.76 : 71,041.53 = 28,816.94 : x
  2. Step 2: Convert to fraction form
    51,481.76/71,041.53 = 28,816.94/x
  3. Step 3: Cross multiply
    51,481.76x = 71,041.53 × 28,816.94
  4. Step 4: Simplify right side
    51,481.76x = 2,047,199,507.52
  5. Step 5: Solve for x
    x = 2,047,199,507.52/51,481.76
  6. Step 6: Final answer
    x = 39,765.53

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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.