Home / 77,975.06-107,605.48-42,164.98

Finding the Fourth Proportional to 77,975.06, 107,605.48 and 42,164.98

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Solution

The fourth proportional to 77,975.06, 107,605.48 and 42,164.98 is: 58,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,975.06 : 107,605.48 = 42,164.98 : x
  2. Step 2: Convert to fraction form
    77,975.06/107,605.48 = 42,164.98/x
  3. Step 3: Cross multiply
    77,975.06x = 107,605.48 × 42,164.98
  4. Step 4: Simplify right side
    77,975.06x = 4,537,182,912.09
  5. Step 5: Solve for x
    x = 4,537,182,912.09/77,975.06
  6. Step 6: Final answer
    x = 58,187.62

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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.