Home / 51,722.98-71,391.35-30,516.37

Finding the Fourth Proportional to 51,722.98, 71,391.35 and 30,516.37

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Solution

The fourth proportional to 51,722.98, 71,391.35 and 30,516.37 is: 42,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,722.98 : 71,391.35 = 30,516.37 : x
  2. Step 2: Convert to fraction form
    51,722.98/71,391.35 = 30,516.37/x
  3. Step 3: Cross multiply
    51,722.98x = 71,391.35 × 30,516.37
  4. Step 4: Simplify right side
    51,722.98x = 2,178,604,749.21
  5. Step 5: Solve for x
    x = 2,178,604,749.21/51,722.98
  6. Step 6: Final answer
    x = 42,120.64

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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.