Finding the Fourth Proportional to 74,347.92, 102,597.84 and 40,354.80
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Solution
The fourth proportional to 74,347.92, 102,597.84 and 40,354.80 is: 55,688.38
Step by Step Solution
- Step 1: Write the proportion equation
74,347.92 : 102,597.84 = 40,354.80 : x - Step 2: Convert to fraction form
74,347.92/102,597.84 = 40,354.80/x - Step 3: Cross multiply
74,347.92x = 102,597.84 × 40,354.80 - Step 4: Simplify right side
74,347.92x = 4,140,315,313.63 - Step 5: Solve for x
x = 4,140,315,313.63/74,347.92 - Step 6: Final answer
x = 55,688.38
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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.