Home / 77,718.08-116,554.24-30,322.56

Finding the Fourth Proportional to 77,718.08, 116,554.24 and 30,322.56

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Solution

The fourth proportional to 77,718.08, 116,554.24 and 30,322.56 is: 45,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,718.08 : 116,554.24 = 30,322.56 : x
  2. Step 2: Convert to fraction form
    77,718.08/116,554.24 = 30,322.56/x
  3. Step 3: Cross multiply
    77,718.08x = 116,554.24 × 30,322.56
  4. Step 4: Simplify right side
    77,718.08x = 3,534,222,935.65
  5. Step 5: Solve for x
    x = 3,534,222,935.65/77,718.08
  6. Step 6: Final answer
    x = 45,474.91

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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.