Finding the Fourth Proportional to 68,455.06, 102,448.95 and 57,374.26
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Solution
The fourth proportional to 68,455.06, 102,448.95 and 57,374.26 is: 85,865.57
Step by Step Solution
- Step 1: Write the proportion equation
68,455.06 : 102,448.95 = 57,374.26 : x - Step 2: Convert to fraction form
68,455.06/102,448.95 = 57,374.26/x - Step 3: Cross multiply
68,455.06x = 102,448.95 × 57,374.26 - Step 4: Simplify right side
68,455.06x = 5,877,932,694.03 - Step 5: Solve for x
x = 5,877,932,694.03/68,455.06 - Step 6: Final answer
x = 85,865.57
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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.