Home / 43,109.64-64,578.06-19,703.88

Finding the Fourth Proportional to 43,109.64, 64,578.06 and 19,703.88

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Solution

The fourth proportional to 43,109.64, 64,578.06 and 19,703.88 is: 29,516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,109.64 : 64,578.06 = 19,703.88 : x
  2. Step 2: Convert to fraction form
    43,109.64/64,578.06 = 19,703.88/x
  3. Step 3: Cross multiply
    43,109.64x = 64,578.06 × 19,703.88
  4. Step 4: Simplify right side
    43,109.64x = 1,272,438,344.87
  5. Step 5: Solve for x
    x = 1,272,438,344.87/43,109.64
  6. Step 6: Final answer
    x = 29,516.33

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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.