Home / 43,086.40-64,629.16-16,809.60

Finding the Fourth Proportional to 43,086.40, 64,629.16 and 16,809.60

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Solution

The fourth proportional to 43,086.40, 64,629.16 and 16,809.60 is: 25,214.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,086.40 : 64,629.16 = 16,809.60 : x
  2. Step 2: Convert to fraction form
    43,086.40/64,629.16 = 16,809.60/x
  3. Step 3: Cross multiply
    43,086.40x = 64,629.16 × 16,809.60
  4. Step 4: Simplify right side
    43,086.40x = 1,086,390,327.94
  5. Step 5: Solve for x
    x = 1,086,390,327.94/43,086.40
  6. Step 6: Final answer
    x = 25,214.23

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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.