Finding the Fourth Proportional to 74,416.17, 102,695.12 and 40,425.06
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Solution
The fourth proportional to 74,416.17, 102,695.12 and 40,425.06 is: 55,787.02
Step by Step Solution
- Step 1: Write the proportion equation
74,416.17 : 102,695.12 = 40,425.06 : x - Step 2: Convert to fraction form
74,416.17/102,695.12 = 40,425.06/x - Step 3: Cross multiply
74,416.17x = 102,695.12 × 40,425.06 - Step 4: Simplify right side
74,416.17x = 4,151,456,387.71 - Step 5: Solve for x
x = 4,151,456,387.71/74,416.17 - Step 6: Final answer
x = 55,787.02
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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.