Home / 78,729.57-108,614.09-46,451.37

Finding the Fourth Proportional to 78,729.57, 108,614.09 and 46,451.37

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Solution

The fourth proportional to 78,729.57, 108,614.09 and 46,451.37 is: 64,083.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,729.57 : 108,614.09 = 46,451.37 : x
  2. Step 2: Convert to fraction form
    78,729.57/108,614.09 = 46,451.37/x
  3. Step 3: Cross multiply
    78,729.57x = 108,614.09 × 46,451.37
  4. Step 4: Simplify right side
    78,729.57x = 5,045,273,281.80
  5. Step 5: Solve for x
    x = 5,045,273,281.80/78,729.57
  6. Step 6: Final answer
    x = 64,083.59

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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.