Home / 77,287.14-106,665.39-47,090.34

Finding the Fourth Proportional to 77,287.14, 106,665.39 and 47,090.34

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Solution

The fourth proportional to 77,287.14, 106,665.39 and 47,090.34 is: 64,990.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,287.14 : 106,665.39 = 47,090.34 : x
  2. Step 2: Convert to fraction form
    77,287.14/106,665.39 = 47,090.34/x
  3. Step 3: Cross multiply
    77,287.14x = 106,665.39 × 47,090.34
  4. Step 4: Simplify right side
    77,287.14x = 5,022,909,481.33
  5. Step 5: Solve for x
    x = 5,022,909,481.33/77,287.14
  6. Step 6: Final answer
    x = 64,990.24

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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.