Finding the Fourth Proportional to 76,825.68, 115,159.44 and 29,427.84
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Solution
The fourth proportional to 76,825.68, 115,159.44 and 29,427.84 is: 44,111.47
Step by Step Solution
- Step 1: Write the proportion equation
76,825.68 : 115,159.44 = 29,427.84 : x - Step 2: Convert to fraction form
76,825.68/115,159.44 = 29,427.84/x - Step 3: Cross multiply
76,825.68x = 115,159.44 × 29,427.84 - Step 4: Simplify right side
76,825.68x = 3,388,893,574.81 - Step 5: Solve for x
x = 3,388,893,574.81/76,825.68 - Step 6: Final answer
x = 44,111.47
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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.