Finding the Fourth Proportional to 83,840.98, 115,698.24 and 46,115.26
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Solution
The fourth proportional to 83,840.98, 115,698.24 and 46,115.26 is: 63,637.79
Step by Step Solution
- Step 1: Write the proportion equation
83,840.98 : 115,698.24 = 46,115.26 : x - Step 2: Convert to fraction form
83,840.98/115,698.24 = 46,115.26/x - Step 3: Cross multiply
83,840.98x = 115,698.24 × 46,115.26 - Step 4: Simplify right side
83,840.98x = 5,335,454,419.14 - Step 5: Solve for x
x = 5,335,454,419.14/83,840.98 - Step 6: Final answer
x = 63,637.79
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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.