Home / 83,735.36-115,574.64-47,945.96

Finding the Fourth Proportional to 83,735.36, 115,574.64 and 47,945.96

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Solution

The fourth proportional to 83,735.36, 115,574.64 and 47,945.96 is: 66,176.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,735.36 : 115,574.64 = 47,945.96 : x
  2. Step 2: Convert to fraction form
    83,735.36/115,574.64 = 47,945.96/x
  3. Step 3: Cross multiply
    83,735.36x = 115,574.64 × 47,945.96
  4. Step 4: Simplify right side
    83,735.36x = 5,541,337,066.45
  5. Step 5: Solve for x
    x = 5,541,337,066.45/83,735.36
  6. Step 6: Final answer
    x = 66,176.79

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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.