Finding the Fourth Proportional to 91,070.38, 136,572.76 and 38,483.97
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Solution
The fourth proportional to 91,070.38, 136,572.76 and 38,483.97 is: 57,712.09
Step by Step Solution
- Step 1: Write the proportion equation
91,070.38 : 136,572.76 = 38,483.97 : x - Step 2: Convert to fraction form
91,070.38/136,572.76 = 38,483.97/x - Step 3: Cross multiply
91,070.38x = 136,572.76 × 38,483.97 - Step 4: Simplify right side
91,070.38x = 5,255,861,998.66 - Step 5: Solve for x
x = 5,255,861,998.66/91,070.38 - Step 6: Final answer
x = 57,712.09
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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.