Home / 78,310.20-108,086.61-46,497.45

Finding the Fourth Proportional to 78,310.20, 108,086.61 and 46,497.45

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Solution

The fourth proportional to 78,310.20, 108,086.61 and 46,497.45 is: 64,177.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,310.20 : 108,086.61 = 46,497.45 : x
  2. Step 2: Convert to fraction form
    78,310.20/108,086.61 = 46,497.45/x
  3. Step 3: Cross multiply
    78,310.20x = 108,086.61 × 46,497.45
  4. Step 4: Simplify right side
    78,310.20x = 5,025,751,744.14
  5. Step 5: Solve for x
    x = 5,025,751,744.14/78,310.20
  6. Step 6: Final answer
    x = 64,177.49

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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.