Home / 75,668.18-104,434.56-57,729.29

Finding the Fourth Proportional to 75,668.18, 104,434.56 and 57,729.29

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Solution

The fourth proportional to 75,668.18, 104,434.56 and 57,729.29 is: 79,675.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,668.18 : 104,434.56 = 57,729.29 : x
  2. Step 2: Convert to fraction form
    75,668.18/104,434.56 = 57,729.29/x
  3. Step 3: Cross multiply
    75,668.18x = 104,434.56 × 57,729.29
  4. Step 4: Simplify right side
    75,668.18x = 6,028,932,478.09
  5. Step 5: Solve for x
    x = 6,028,932,478.09/75,668.18
  6. Step 6: Final answer
    x = 79,675.93

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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.