Home / 68,380.48-102,577.92-28,941.60

Finding the Fourth Proportional to 68,380.48, 102,577.92 and 28,941.60

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Solution

The fourth proportional to 68,380.48, 102,577.92 and 28,941.60 is: 43,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,380.48 : 102,577.92 = 28,941.60 : x
  2. Step 2: Convert to fraction form
    68,380.48/102,577.92 = 28,941.60/x
  3. Step 3: Cross multiply
    68,380.48x = 102,577.92 × 28,941.60
  4. Step 4: Simplify right side
    68,380.48x = 2,968,769,129.47
  5. Step 5: Solve for x
    x = 2,968,769,129.47/68,380.48
  6. Step 6: Final answer
    x = 43,415.45

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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.