Home / 75,895.36-113,842.80-20,491.36

Finding the Fourth Proportional to 75,895.36, 113,842.80 and 20,491.36

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Solution

The fourth proportional to 75,895.36, 113,842.80 and 20,491.36 is: 30,736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,895.36 : 113,842.80 = 20,491.36 : x
  2. Step 2: Convert to fraction form
    75,895.36/113,842.80 = 20,491.36/x
  3. Step 3: Cross multiply
    75,895.36x = 113,842.80 × 20,491.36
  4. Step 4: Simplify right side
    75,895.36x = 2,332,793,798.21
  5. Step 5: Solve for x
    x = 2,332,793,798.21/75,895.36
  6. Step 6: Final answer
    x = 30,736.98

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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.