Finding the Fourth Proportional to 78,734.41, 108,655.54 and 48,539.68
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Solution
The fourth proportional to 78,734.41, 108,655.54 and 48,539.68 is: 66,986.02
Step by Step Solution
- Step 1: Write the proportion equation
78,734.41 : 108,655.54 = 48,539.68 : x - Step 2: Convert to fraction form
78,734.41/108,655.54 = 48,539.68/x - Step 3: Cross multiply
78,734.41x = 108,655.54 × 48,539.68 - Step 4: Simplify right side
78,734.41x = 5,274,104,748.84 - Step 5: Solve for x
x = 5,274,104,748.84/78,734.41 - Step 6: Final answer
x = 66,986.02
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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.