Home / 51,739.51-71,406.43-28,771.61

Finding the Fourth Proportional to 51,739.51, 71,406.43 and 28,771.61

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Solution

The fourth proportional to 51,739.51, 71,406.43 and 28,771.61 is: 39,708.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,739.51 : 71,406.43 = 28,771.61 : x
  2. Step 2: Convert to fraction form
    51,739.51/71,406.43 = 28,771.61/x
  3. Step 3: Cross multiply
    51,739.51x = 71,406.43 × 28,771.61
  4. Step 4: Simplify right side
    51,739.51x = 2,054,477,686.86
  5. Step 5: Solve for x
    x = 2,054,477,686.86/51,739.51
  6. Step 6: Final answer
    x = 39,708.10

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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.