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Finding the Fourth Proportional to 84,944.16, 127,419.48 and 43,342.56

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Solution

The fourth proportional to 84,944.16, 127,419.48 and 43,342.56 is: 65,015.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,944.16 : 127,419.48 = 43,342.56 : x
  2. Step 2: Convert to fraction form
    84,944.16/127,419.48 = 43,342.56/x
  3. Step 3: Cross multiply
    84,944.16x = 127,419.48 × 43,342.56
  4. Step 4: Simplify right side
    84,944.16x = 5,522,686,457.07
  5. Step 5: Solve for x
    x = 5,522,686,457.07/84,944.16
  6. Step 6: Final answer
    x = 65,015.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.