Home / 77,977.89-116,926.74-25,380.54

Finding the Fourth Proportional to 77,977.89, 116,926.74 and 25,380.54

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Solution

The fourth proportional to 77,977.89, 116,926.74 and 25,380.54 is: 38,057.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,977.89 : 116,926.74 = 25,380.54 : x
  2. Step 2: Convert to fraction form
    77,977.89/116,926.74 = 25,380.54/x
  3. Step 3: Cross multiply
    77,977.89x = 116,926.74 × 25,380.54
  4. Step 4: Simplify right side
    77,977.89x = 2,967,663,801.64
  5. Step 5: Solve for x
    x = 2,967,663,801.64/77,977.89
  6. Step 6: Final answer
    x = 38,057.76

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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.