Finding the Fourth Proportional to 75,132.08, 103,681.32 and 45,324.08
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Solution
The fourth proportional to 75,132.08, 103,681.32 and 45,324.08 is: 62,546.66
Step by Step Solution
- Step 1: Write the proportion equation
75,132.08 : 103,681.32 = 45,324.08 : x - Step 2: Convert to fraction form
75,132.08/103,681.32 = 45,324.08/x - Step 3: Cross multiply
75,132.08x = 103,681.32 × 45,324.08 - Step 4: Simplify right side
75,132.08x = 4,699,260,442.19 - Step 5: Solve for x
x = 4,699,260,442.19/75,132.08 - Step 6: Final answer
x = 62,546.66
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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.