Home / 78,460.35-108,284.36-46,628.97

Finding the Fourth Proportional to 78,460.35, 108,284.36 and 46,628.97

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Solution

The fourth proportional to 78,460.35, 108,284.36 and 46,628.97 is: 64,353.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,460.35 : 108,284.36 = 46,628.97 : x
  2. Step 2: Convert to fraction form
    78,460.35/108,284.36 = 46,628.97/x
  3. Step 3: Cross multiply
    78,460.35x = 108,284.36 × 46,628.97
  4. Step 4: Simplify right side
    78,460.35x = 5,049,188,173.91
  5. Step 5: Solve for x
    x = 5,049,188,173.91/78,460.35
  6. Step 6: Final answer
    x = 64,353.37

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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.