Home / 45,445.60-68,155.92-28,780.64

Finding the Fourth Proportional to 45,445.60, 68,155.92 and 28,780.64

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Solution

The fourth proportional to 45,445.60, 68,155.92 and 28,780.64 is: 43,163.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,445.60 : 68,155.92 = 28,780.64 : x
  2. Step 2: Convert to fraction form
    45,445.60/68,155.92 = 28,780.64/x
  3. Step 3: Cross multiply
    45,445.60x = 68,155.92 × 28,780.64
  4. Step 4: Simplify right side
    45,445.60x = 1,961,570,997.39
  5. Step 5: Solve for x
    x = 1,961,570,997.39/45,445.60
  6. Step 6: Final answer
    x = 43,163.06

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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.