Home / 76,928.27-115,391.88-41,406.32

Finding the Fourth Proportional to 76,928.27, 115,391.88 and 41,406.32

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Solution

The fourth proportional to 76,928.27, 115,391.88 and 41,406.32 is: 62,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,928.27 : 115,391.88 = 41,406.32 : x
  2. Step 2: Convert to fraction form
    76,928.27/115,391.88 = 41,406.32/x
  3. Step 3: Cross multiply
    76,928.27x = 115,391.88 × 41,406.32
  4. Step 4: Simplify right side
    76,928.27x = 4,777,953,397.16
  5. Step 5: Solve for x
    x = 4,777,953,397.16/76,928.27
  6. Step 6: Final answer
    x = 62,109.21

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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.