Home / 77,485.47-116,043.66-53,816.64

Finding the Fourth Proportional to 77,485.47, 116,043.66 and 53,816.64

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Solution

The fourth proportional to 77,485.47, 116,043.66 and 53,816.64 is: 80,596.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,485.47 : 116,043.66 = 53,816.64 : x
  2. Step 2: Convert to fraction form
    77,485.47/116,043.66 = 53,816.64/x
  3. Step 3: Cross multiply
    77,485.47x = 116,043.66 × 53,816.64
  4. Step 4: Simplify right side
    77,485.47x = 6,245,079,874.50
  5. Step 5: Solve for x
    x = 6,245,079,874.50/77,485.47
  6. Step 6: Final answer
    x = 80,596.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.