Home / 68,077.60-102,122.64-28,627.36

Finding the Fourth Proportional to 68,077.60, 102,122.64 and 28,627.36

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Solution

The fourth proportional to 68,077.60, 102,122.64 and 28,627.36 is: 42,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,077.60 : 102,122.64 = 28,627.36 : x
  2. Step 2: Convert to fraction form
    68,077.60/102,122.64 = 28,627.36/x
  3. Step 3: Cross multiply
    68,077.60x = 102,122.64 × 28,627.36
  4. Step 4: Simplify right side
    68,077.60x = 2,923,501,579.43
  5. Step 5: Solve for x
    x = 2,923,501,579.43/68,077.60
  6. Step 6: Final answer
    x = 42,943.66

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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.