Home / 77,662.09-107,172.48-43,670.61

Finding the Fourth Proportional to 77,662.09, 107,172.48 and 43,670.61

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Solution

The fourth proportional to 77,662.09, 107,172.48 and 43,670.61 is: 60,264.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,662.09 : 107,172.48 = 43,670.61 : x
  2. Step 2: Convert to fraction form
    77,662.09/107,172.48 = 43,670.61/x
  3. Step 3: Cross multiply
    77,662.09x = 107,172.48 × 43,670.61
  4. Step 4: Simplify right side
    77,662.09x = 4,680,287,576.81
  5. Step 5: Solve for x
    x = 4,680,287,576.81/77,662.09
  6. Step 6: Final answer
    x = 60,264.76

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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.