Finding the Fourth Proportional to 81,292.66, 121,926.68 and 22,132.99
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Solution
The fourth proportional to 81,292.66, 121,926.68 and 22,132.99 is: 33,196.13
Step by Step Solution
- Step 1: Write the proportion equation
81,292.66 : 121,926.68 = 22,132.99 : x - Step 2: Convert to fraction form
81,292.66/121,926.68 = 22,132.99/x - Step 3: Cross multiply
81,292.66x = 121,926.68 × 22,132.99 - Step 4: Simplify right side
81,292.66x = 2,698,601,573.69 - Step 5: Solve for x
x = 2,698,601,573.69/81,292.66 - Step 6: Final answer
x = 33,196.13
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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.