Finding the Fourth Proportional to 89,341.79, 133,982.93 and 36,019.99
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Solution
The fourth proportional to 89,341.79, 133,982.93 and 36,019.99 is: 54,017.99
Step by Step Solution
- Step 1: Write the proportion equation
89,341.79 : 133,982.93 = 36,019.99 : x - Step 2: Convert to fraction form
89,341.79/133,982.93 = 36,019.99/x - Step 3: Cross multiply
89,341.79x = 133,982.93 × 36,019.99 - Step 4: Simplify right side
89,341.79x = 4,826,063,618.67 - Step 5: Solve for x
x = 4,826,063,618.67/89,341.79 - Step 6: Final answer
x = 54,017.99
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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.