Finding the Fourth Proportional to 74,695.68, 103,075.20 and 41,161.68
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Solution
The fourth proportional to 74,695.68, 103,075.20 and 41,161.68 is: 56,800.45
Step by Step Solution
- Step 1: Write the proportion equation
74,695.68 : 103,075.20 = 41,161.68 : x - Step 2: Convert to fraction form
74,695.68/103,075.20 = 41,161.68/x - Step 3: Cross multiply
74,695.68x = 103,075.20 × 41,161.68 - Step 4: Simplify right side
74,695.68x = 4,242,748,398.34 - Step 5: Solve for x
x = 4,242,748,398.34/74,695.68 - Step 6: Final answer
x = 56,800.45
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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.