Finding the Fourth Proportional to 77,148.49, 106,459.89 and 43,151.08
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Solution
The fourth proportional to 77,148.49, 106,459.89 and 43,151.08 is: 59,545.68
Step by Step Solution
- Step 1: Write the proportion equation
77,148.49 : 106,459.89 = 43,151.08 : x - Step 2: Convert to fraction form
77,148.49/106,459.89 = 43,151.08/x - Step 3: Cross multiply
77,148.49x = 106,459.89 × 43,151.08 - Step 4: Simplify right side
77,148.49x = 4,593,859,230.18 - Step 5: Solve for x
x = 4,593,859,230.18/77,148.49 - Step 6: Final answer
x = 59,545.68
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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.