Finding the Fourth Proportional to 88,991.24, 133,501.62 and 42,218.60
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Solution
The fourth proportional to 88,991.24, 133,501.62 and 42,218.60 is: 63,334.90
Step by Step Solution
- Step 1: Write the proportion equation
88,991.24 : 133,501.62 = 42,218.60 : x - Step 2: Convert to fraction form
88,991.24/133,501.62 = 42,218.60/x - Step 3: Cross multiply
88,991.24x = 133,501.62 × 42,218.60 - Step 4: Simplify right side
88,991.24x = 5,636,251,494.13 - Step 5: Solve for x
x = 5,636,251,494.13/88,991.24 - Step 6: Final answer
x = 63,334.90
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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.