Home / 82,360.40-123,540.60-51,256.40

Finding the Fourth Proportional to 82,360.40, 123,540.60 and 51,256.40

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Solution

The fourth proportional to 82,360.40, 123,540.60 and 51,256.40 is: 76,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,360.40 : 123,540.60 = 51,256.40 : x
  2. Step 2: Convert to fraction form
    82,360.40/123,540.60 = 51,256.40/x
  3. Step 3: Cross multiply
    82,360.40x = 123,540.60 × 51,256.40
  4. Step 4: Simplify right side
    82,360.40x = 6,332,246,409.84
  5. Step 5: Solve for x
    x = 6,332,246,409.84/82,360.40
  6. Step 6: Final answer
    x = 76,884.60

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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.