Home / 51,739.74-71,406.76-28,771.85

Finding the Fourth Proportional to 51,739.74, 71,406.76 and 28,771.85

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Solution

The fourth proportional to 51,739.74, 71,406.76 and 28,771.85 is: 39,708.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,739.74 : 71,406.76 = 28,771.85 : x
  2. Step 2: Convert to fraction form
    51,739.74/71,406.76 = 28,771.85/x
  3. Step 3: Cross multiply
    51,739.74x = 71,406.76 × 28,771.85
  4. Step 4: Simplify right side
    51,739.74x = 2,054,504,587.71
  5. Step 5: Solve for x
    x = 2,054,504,587.71/51,739.74
  6. Step 6: Final answer
    x = 39,708.44

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1.5x scale

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.