Finding the Fourth Proportional to 74,102.84, 111,129.42 and 29,718.08
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Solution
The fourth proportional to 74,102.84, 111,129.42 and 29,718.08 is: 44,567.16
Step by Step Solution
- Step 1: Write the proportion equation
74,102.84 : 111,129.42 = 29,718.08 : x - Step 2: Convert to fraction form
74,102.84/111,129.42 = 29,718.08/x - Step 3: Cross multiply
74,102.84x = 111,129.42 × 29,718.08 - Step 4: Simplify right side
74,102.84x = 3,302,552,993.91 - Step 5: Solve for x
x = 3,302,552,993.91/74,102.84 - Step 6: Final answer
x = 44,567.16
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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.