Finding the Fourth Proportional to 79,681.68, 119,460.96 and 40,218.48
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Solution
The fourth proportional to 79,681.68, 119,460.96 and 40,218.48 is: 60,296.65
Step by Step Solution
- Step 1: Write the proportion equation
79,681.68 : 119,460.96 = 40,218.48 : x - Step 2: Convert to fraction form
79,681.68/119,460.96 = 40,218.48/x - Step 3: Cross multiply
79,681.68x = 119,460.96 × 40,218.48 - Step 4: Simplify right side
79,681.68x = 4,804,538,230.54 - Step 5: Solve for x
x = 4,804,538,230.54/79,681.68 - Step 6: Final answer
x = 60,296.65
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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.