Finding the Fourth Proportional to 74,534.19, 102,771.09 and 59,415.09
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Solution
The fourth proportional to 74,534.19, 102,771.09 and 59,415.09 is: 81,924.20
Step by Step Solution
- Step 1: Write the proportion equation
74,534.19 : 102,771.09 = 59,415.09 : x - Step 2: Convert to fraction form
74,534.19/102,771.09 = 59,415.09/x - Step 3: Cross multiply
74,534.19x = 102,771.09 × 59,415.09 - Step 4: Simplify right side
74,534.19x = 6,106,153,561.75 - Step 5: Solve for x
x = 6,106,153,561.75/74,534.19 - Step 6: Final answer
x = 81,924.20
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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.