Home / 68,630.20-102,743.70-51,177.40

Finding the Fourth Proportional to 68,630.20, 102,743.70 and 51,177.40

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Solution

The fourth proportional to 68,630.20, 102,743.70 and 51,177.40 is: 76,615.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,630.20 : 102,743.70 = 51,177.40 : x
  2. Step 2: Convert to fraction form
    68,630.20/102,743.70 = 51,177.40/x
  3. Step 3: Cross multiply
    68,630.20x = 102,743.70 × 51,177.40
  4. Step 4: Simplify right side
    68,630.20x = 5,258,155,432.38
  5. Step 5: Solve for x
    x = 5,258,155,432.38/68,630.20
  6. Step 6: Final answer
    x = 76,615.77

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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.