Home / 79,940.22-119,875.44-42,491.28

Finding the Fourth Proportional to 79,940.22, 119,875.44 and 42,491.28

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Solution

The fourth proportional to 79,940.22, 119,875.44 and 42,491.28 is: 63,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,940.22 : 119,875.44 = 42,491.28 : x
  2. Step 2: Convert to fraction form
    79,940.22/119,875.44 = 42,491.28/x
  3. Step 3: Cross multiply
    79,940.22x = 119,875.44 × 42,491.28
  4. Step 4: Simplify right side
    79,940.22x = 5,093,661,495.04
  5. Step 5: Solve for x
    x = 5,093,661,495.04/79,940.22
  6. Step 6: Final answer
    x = 63,718.39

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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.