Home / 43,109.63-64,664.45-11,944.88

Finding the Fourth Proportional to 43,109.63, 64,664.45 and 11,944.88

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Solution

The fourth proportional to 43,109.63, 64,664.45 and 11,944.88 is: 17,917.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,109.63 : 64,664.45 = 11,944.88 : x
  2. Step 2: Convert to fraction form
    43,109.63/64,664.45 = 11,944.88/x
  3. Step 3: Cross multiply
    43,109.63x = 64,664.45 × 11,944.88
  4. Step 4: Simplify right side
    43,109.63x = 772,408,712.47
  5. Step 5: Solve for x
    x = 772,408,712.47/43,109.63
  6. Step 6: Final answer
    x = 17,917.31

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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.