Finding the Fourth Proportional to 74,166.19, 102,349.83 and 40,174.68
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Solution
The fourth proportional to 74,166.19, 102,349.83 and 40,174.68 is: 55,441.32
Step by Step Solution
- Step 1: Write the proportion equation
74,166.19 : 102,349.83 = 40,174.68 : x - Step 2: Convert to fraction form
74,166.19/102,349.83 = 40,174.68/x - Step 3: Cross multiply
74,166.19x = 102,349.83 × 40,174.68 - Step 4: Simplify right side
74,166.19x = 4,111,871,263.87 - Step 5: Solve for x
x = 4,111,871,263.87/74,166.19 - Step 6: Final answer
x = 55,441.32
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Double scale
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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.