Finding the Fourth Proportional to 74,126.16, 102,292.21 and 41,420.84
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Solution
The fourth proportional to 74,126.16, 102,292.21 and 41,420.84 is: 57,159.70
Step by Step Solution
- Step 1: Write the proportion equation
74,126.16 : 102,292.21 = 41,420.84 : x - Step 2: Convert to fraction form
74,126.16/102,292.21 = 41,420.84/x - Step 3: Cross multiply
74,126.16x = 102,292.21 × 41,420.84 - Step 4: Simplify right side
74,126.16x = 4,237,029,415.83 - Step 5: Solve for x
x = 4,237,029,415.83/74,126.16 - Step 6: Final answer
x = 57,159.70
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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.