Finding the Fourth Proportional to 86,149.68, 129,214.23 and 22,974.54
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Solution
The fourth proportional to 86,149.68, 129,214.23 and 22,974.54 is: 34,459.07
Step by Step Solution
- Step 1: Write the proportion equation
86,149.68 : 129,214.23 = 22,974.54 : x - Step 2: Convert to fraction form
86,149.68/129,214.23 = 22,974.54/x - Step 3: Cross multiply
86,149.68x = 129,214.23 × 22,974.54 - Step 4: Simplify right side
86,149.68x = 2,968,637,495.70 - Step 5: Solve for x
x = 2,968,637,495.70/86,149.68 - Step 6: Final answer
x = 34,459.07
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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.