Home / 81,749.72-122,469.06-46,582.76

Finding the Fourth Proportional to 81,749.72, 122,469.06 and 46,582.76

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Solution

The fourth proportional to 81,749.72, 122,469.06 and 46,582.76 is: 69,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,749.72 : 122,469.06 = 46,582.76 : x
  2. Step 2: Convert to fraction form
    81,749.72/122,469.06 = 46,582.76/x
  3. Step 3: Cross multiply
    81,749.72x = 122,469.06 × 46,582.76
  4. Step 4: Simplify right side
    81,749.72x = 5,704,946,829.41
  5. Step 5: Solve for x
    x = 5,704,946,829.41/81,749.72
  6. Step 6: Final answer
    x = 69,785.52

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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.