Finding the Fourth Proportional to 77,636, 107,137.68 and 42,308
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Solution
The fourth proportional to 77,636, 107,137.68 and 42,308 is: 58,385.04
Step by Step Solution
- Step 1: Write the proportion equation
77,636 : 107,137.68 = 42,308 : x - Step 2: Convert to fraction form
77,636/107,137.68 = 42,308/x - Step 3: Cross multiply
77,636x = 107,137.68 × 42,308 - Step 4: Simplify right side
77,636x = 4,532,780,965.44 - Step 5: Solve for x
x = 4,532,780,965.44/77,636 - Step 6: Final answer
x = 58,385.04
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.