Home / 75,136.76-103,665.26-43,301.33

Finding the Fourth Proportional to 75,136.76, 103,665.26 and 43,301.33

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Solution

The fourth proportional to 75,136.76, 103,665.26 and 43,301.33 is: 59,742.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136.76 : 103,665.26 = 43,301.33 : x
  2. Step 2: Convert to fraction form
    75,136.76/103,665.26 = 43,301.33/x
  3. Step 3: Cross multiply
    75,136.76x = 103,665.26 × 43,301.33
  4. Step 4: Simplify right side
    75,136.76x = 4,488,843,416.29
  5. Step 5: Solve for x
    x = 4,488,843,416.29/75,136.76
  6. Step 6: Final answer
    x = 59,742.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.