Home / 84,039.80-115,979.24-46,314.05

Finding the Fourth Proportional to 84,039.80, 115,979.24 and 46,314.05

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Solution

The fourth proportional to 84,039.80, 115,979.24 and 46,314.05 is: 63,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,039.80 : 115,979.24 = 46,314.05 : x
  2. Step 2: Convert to fraction form
    84,039.80/115,979.24 = 46,314.05/x
  3. Step 3: Cross multiply
    84,039.80x = 115,979.24 × 46,314.05
  4. Step 4: Simplify right side
    84,039.80x = 5,371,467,856.21
  5. Step 5: Solve for x
    x = 5,371,467,856.21/84,039.80
  6. Step 6: Final answer
    x = 63,915.77

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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.