Home / 53,984.30-80,917.05-18,905.90

Finding the Fourth Proportional to 53,984.30, 80,917.05 and 18,905.90

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Solution

The fourth proportional to 53,984.30, 80,917.05 and 18,905.90 is: 28,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,984.30 : 80,917.05 = 18,905.90 : x
  2. Step 2: Convert to fraction form
    53,984.30/80,917.05 = 18,905.90/x
  3. Step 3: Cross multiply
    53,984.30x = 80,917.05 × 18,905.90
  4. Step 4: Simplify right side
    53,984.30x = 1,529,809,655.60
  5. Step 5: Solve for x
    x = 1,529,809,655.60/53,984.30
  6. Step 6: Final answer
    x = 28,338.05

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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.