Home / 80,956.26-121,429.67-31,034.34

Finding the Fourth Proportional to 80,956.26, 121,429.67 and 31,034.34

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Solution

The fourth proportional to 80,956.26, 121,429.67 and 31,034.34 is: 46,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,956.26 : 121,429.67 = 31,034.34 : x
  2. Step 2: Convert to fraction form
    80,956.26/121,429.67 = 31,034.34/x
  3. Step 3: Cross multiply
    80,956.26x = 121,429.67 × 31,034.34
  4. Step 4: Simplify right side
    80,956.26x = 3,768,489,509.70
  5. Step 5: Solve for x
    x = 3,768,489,509.70/80,956.26
  6. Step 6: Final answer
    x = 46,549.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.