Finding the Fourth Proportional to 74,120.13, 102,260.48 and 42,266.07
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Solution
The fourth proportional to 74,120.13, 102,260.48 and 42,266.07 is: 58,312.75
Step by Step Solution
- Step 1: Write the proportion equation
74,120.13 : 102,260.48 = 42,266.07 : x - Step 2: Convert to fraction form
74,120.13/102,260.48 = 42,266.07/x - Step 3: Cross multiply
74,120.13x = 102,260.48 × 42,266.07 - Step 4: Simplify right side
74,120.13x = 4,322,148,394.58 - Step 5: Solve for x
x = 4,322,148,394.58/74,120.13 - Step 6: Final answer
x = 58,312.75
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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.