Finding the Fourth Proportional to 68,245.23, 102,478.97 and 42,116.07
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Solution
The fourth proportional to 68,245.23, 102,478.97 and 42,116.07 is: 63,242.68
Step by Step Solution
- Step 1: Write the proportion equation
68,245.23 : 102,478.97 = 42,116.07 : x - Step 2: Convert to fraction form
68,245.23/102,478.97 = 42,116.07/x - Step 3: Cross multiply
68,245.23x = 102,478.97 × 42,116.07 - Step 4: Simplify right side
68,245.23x = 4,316,011,263.47 - Step 5: Solve for x
x = 4,316,011,263.47/68,245.23 - Step 6: Final answer
x = 63,242.68
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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.