Home / 43,164.76-64,742.48-11,578

Finding the Fourth Proportional to 43,164.76, 64,742.48 and 11,578

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Solution

The fourth proportional to 43,164.76, 64,742.48 and 11,578 is: 17,365.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,164.76 : 64,742.48 = 11,578 : x
  2. Step 2: Convert to fraction form
    43,164.76/64,742.48 = 11,578/x
  3. Step 3: Cross multiply
    43,164.76x = 64,742.48 × 11,578
  4. Step 4: Simplify right side
    43,164.76x = 749,588,433.44
  5. Step 5: Solve for x
    x = 749,588,433.44/43,164.76
  6. Step 6: Final answer
    x = 17,365.75

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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.