Finding the Fourth Proportional to 67,691.18, 101,557.53 and 30,282.74
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Solution
The fourth proportional to 67,691.18, 101,557.53 and 30,282.74 is: 45,433.40
Step by Step Solution
- Step 1: Write the proportion equation
67,691.18 : 101,557.53 = 30,282.74 : x - Step 2: Convert to fraction form
67,691.18/101,557.53 = 30,282.74/x - Step 3: Cross multiply
67,691.18x = 101,557.53 × 30,282.74 - Step 4: Simplify right side
67,691.18x = 3,075,440,276.03 - Step 5: Solve for x
x = 3,075,440,276.03/67,691.18 - Step 6: Final answer
x = 45,433.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.