Home / 77,927.94-107,469.99-51,060.78

Finding the Fourth Proportional to 77,927.94, 107,469.99 and 51,060.78

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Solution

The fourth proportional to 77,927.94, 107,469.99 and 51,060.78 is: 70,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,927.94 : 107,469.99 = 51,060.78 : x
  2. Step 2: Convert to fraction form
    77,927.94/107,469.99 = 51,060.78/x
  3. Step 3: Cross multiply
    77,927.94x = 107,469.99 × 51,060.78
  4. Step 4: Simplify right side
    77,927.94x = 5,487,501,515.99
  5. Step 5: Solve for x
    x = 5,487,501,515.99/77,927.94
  6. Step 6: Final answer
    x = 70,417.64

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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.