Finding the Fourth Proportional to 74,437.92, 102,728.93 and 42,606.09
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Solution
The fourth proportional to 74,437.92, 102,728.93 and 42,606.09 is: 58,799.03
Step by Step Solution
- Step 1: Write the proportion equation
74,437.92 : 102,728.93 = 42,606.09 : x - Step 2: Convert to fraction form
74,437.92/102,728.93 = 42,606.09/x - Step 3: Cross multiply
74,437.92x = 102,728.93 × 42,606.09 - Step 4: Simplify right side
74,437.92x = 4,376,877,824.15 - Step 5: Solve for x
x = 4,376,877,824.15/74,437.92 - Step 6: Final answer
x = 58,799.03
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1.5x scale
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.