Finding the Fourth Proportional to 172,356.42, 258,534.71 and 54,036.99
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Solution
The fourth proportional to 172,356.42, 258,534.71 and 54,036.99 is: 81,055.51
Step by Step Solution
- Step 1: Write the proportion equation
172,356.42 : 258,534.71 = 54,036.99 : x - Step 2: Convert to fraction form
172,356.42/258,534.71 = 54,036.99/x - Step 3: Cross multiply
172,356.42x = 258,534.71 × 54,036.99 - Step 4: Simplify right side
172,356.42x = 13,970,437,623.36 - Step 5: Solve for x
x = 13,970,437,623.36/172,356.42 - Step 6: Final answer
x = 81,055.51
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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.