Finding the Fourth Proportional to 68,302.13, 102,428.58 and 28,862.32
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Solution
The fourth proportional to 68,302.13, 102,428.58 and 28,862.32 is: 43,283.07
Step by Step Solution
- Step 1: Write the proportion equation
68,302.13 : 102,428.58 = 28,862.32 : x - Step 2: Convert to fraction form
68,302.13/102,428.58 = 28,862.32/x - Step 3: Cross multiply
68,302.13x = 102,428.58 × 28,862.32 - Step 4: Simplify right side
68,302.13x = 2,956,326,197.03 - Step 5: Solve for x
x = 2,956,326,197.03/68,302.13 - Step 6: Final answer
x = 43,283.07
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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.