Home / 84,039.28-115,976.64-46,315.96

Finding the Fourth Proportional to 84,039.28, 115,976.64 and 46,315.96

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Solution

The fourth proportional to 84,039.28, 115,976.64 and 46,315.96 is: 63,917.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,039.28 : 115,976.64 = 46,315.96 : x
  2. Step 2: Convert to fraction form
    84,039.28/115,976.64 = 46,315.96/x
  3. Step 3: Cross multiply
    84,039.28x = 115,976.64 × 46,315.96
  4. Step 4: Simplify right side
    84,039.28x = 5,371,569,419.17
  5. Step 5: Solve for x
    x = 5,371,569,419.17/84,039.28
  6. Step 6: Final answer
    x = 63,917.37

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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.