Home / 76,311.19-114,467.74-28,913.55

Finding the Fourth Proportional to 76,311.19, 114,467.74 and 28,913.55

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Solution

The fourth proportional to 76,311.19, 114,467.74 and 28,913.55 is: 43,370.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,311.19 : 114,467.74 = 28,913.55 : x
  2. Step 2: Convert to fraction form
    76,311.19/114,467.74 = 28,913.55/x
  3. Step 3: Cross multiply
    76,311.19x = 114,467.74 × 28,913.55
  4. Step 4: Simplify right side
    76,311.19x = 3,309,668,785.07
  5. Step 5: Solve for x
    x = 3,309,668,785.07/76,311.19
  6. Step 6: Final answer
    x = 43,370.69

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1.5x scale

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.