Home / 77,072.31-106,361.10-43,081.47

Finding the Fourth Proportional to 77,072.31, 106,361.10 and 43,081.47

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Solution

The fourth proportional to 77,072.31, 106,361.10 and 43,081.47 is: 59,453.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,072.31 : 106,361.10 = 43,081.47 : x
  2. Step 2: Convert to fraction form
    77,072.31/106,361.10 = 43,081.47/x
  3. Step 3: Cross multiply
    77,072.31x = 106,361.10 × 43,081.47
  4. Step 4: Simplify right side
    77,072.31x = 4,582,192,538.82
  5. Step 5: Solve for x
    x = 4,582,192,538.82/77,072.31
  6. Step 6: Final answer
    x = 59,453.16

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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.