Finding the Fourth Proportional to 88,213.14, 121,731.12 and 47,926.17
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Solution
The fourth proportional to 88,213.14, 121,731.12 and 47,926.17 is: 66,136.48
Step by Step Solution
- Step 1: Write the proportion equation
88,213.14 : 121,731.12 = 47,926.17 : x - Step 2: Convert to fraction form
88,213.14/121,731.12 = 47,926.17/x - Step 3: Cross multiply
88,213.14x = 121,731.12 × 47,926.17 - Step 4: Simplify right side
88,213.14x = 5,834,106,351.41 - Step 5: Solve for x
x = 5,834,106,351.41/88,213.14 - Step 6: Final answer
x = 66,136.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.