Home / 84,629.28-116,653.68-66,695.52

Finding the Fourth Proportional to 84,629.28, 116,653.68 and 66,695.52

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Solution

The fourth proportional to 84,629.28, 116,653.68 and 66,695.52 is: 91,933.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,629.28 : 116,653.68 = 66,695.52 : x
  2. Step 2: Convert to fraction form
    84,629.28/116,653.68 = 66,695.52/x
  3. Step 3: Cross multiply
    84,629.28x = 116,653.68 × 66,695.52
  4. Step 4: Simplify right side
    84,629.28x = 7,780,277,847.51
  5. Step 5: Solve for x
    x = 7,780,277,847.51/84,629.28
  6. Step 6: Final answer
    x = 91,933.64

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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.