Finding the Fourth Proportional to 97,691.40, 146,588.28 and 53,309.88
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Solution
The fourth proportional to 97,691.40, 146,588.28 and 53,309.88 is: 79,992.75
Step by Step Solution
- Step 1: Write the proportion equation
97,691.40 : 146,588.28 = 53,309.88 : x - Step 2: Convert to fraction form
97,691.40/146,588.28 = 53,309.88/x - Step 3: Cross multiply
97,691.40x = 146,588.28 × 53,309.88 - Step 4: Simplify right side
97,691.40x = 7,814,603,616.21 - Step 5: Solve for x
x = 7,814,603,616.21/97,691.40 - Step 6: Final answer
x = 79,992.75
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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.