Home / 77,255.28-115,867.32-53,776.39

Finding the Fourth Proportional to 77,255.28, 115,867.32 and 53,776.39

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Solution

The fourth proportional to 77,255.28, 115,867.32 and 53,776.39 is: 80,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,255.28 : 115,867.32 = 53,776.39 : x
  2. Step 2: Convert to fraction form
    77,255.28/115,867.32 = 53,776.39/x
  3. Step 3: Cross multiply
    77,255.28x = 115,867.32 × 53,776.39
  4. Step 4: Simplify right side
    77,255.28x = 6,230,926,441.12
  5. Step 5: Solve for x
    x = 6,230,926,441.12/77,255.28
  6. Step 6: Final answer
    x = 80,653.73

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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.