Home / 78,313.28-108,072.72-46,046.07

Finding the Fourth Proportional to 78,313.28, 108,072.72 and 46,046.07

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Solution

The fourth proportional to 78,313.28, 108,072.72 and 46,046.07 is: 63,543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,313.28 : 108,072.72 = 46,046.07 : x
  2. Step 2: Convert to fraction form
    78,313.28/108,072.72 = 46,046.07/x
  3. Step 3: Cross multiply
    78,313.28x = 108,072.72 × 46,046.07
  4. Step 4: Simplify right side
    78,313.28x = 4,976,324,030.21
  5. Step 5: Solve for x
    x = 4,976,324,030.21/78,313.28
  6. Step 6: Final answer
    x = 63,543.81

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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.