Finding the Fourth Proportional to 75,985.62, 113,908.74 and 29,203.26
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Solution
The fourth proportional to 75,985.62, 113,908.74 and 29,203.26 is: 43,778.11
Step by Step Solution
- Step 1: Write the proportion equation
75,985.62 : 113,908.74 = 29,203.26 : x - Step 2: Convert to fraction form
75,985.62/113,908.74 = 29,203.26/x - Step 3: Cross multiply
75,985.62x = 113,908.74 × 29,203.26 - Step 4: Simplify right side
75,985.62x = 3,326,506,550.49 - Step 5: Solve for x
x = 3,326,506,550.49/75,985.62 - Step 6: Final answer
x = 43,778.11
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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.