Finding the Fourth Proportional to 74,957.24, 112,403.84 and 43,389.08
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Solution
The fourth proportional to 74,957.24, 112,403.84 and 43,389.08 is: 65,065.08
Step by Step Solution
- Step 1: Write the proportion equation
74,957.24 : 112,403.84 = 43,389.08 : x - Step 2: Convert to fraction form
74,957.24/112,403.84 = 43,389.08/x - Step 3: Cross multiply
74,957.24x = 112,403.84 × 43,389.08 - Step 4: Simplify right side
74,957.24x = 4,877,098,427.10 - Step 5: Solve for x
x = 4,877,098,427.10/74,957.24 - Step 6: Final answer
x = 65,065.08
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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.