Finding the Fourth Proportional to 68,737.87, 102,931.80 and 45,293.23
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Solution
The fourth proportional to 68,737.87, 102,931.80 and 45,293.23 is: 67,824.53
Step by Step Solution
- Step 1: Write the proportion equation
68,737.87 : 102,931.80 = 45,293.23 : x - Step 2: Convert to fraction form
68,737.87/102,931.80 = 45,293.23/x - Step 3: Cross multiply
68,737.87x = 102,931.80 × 45,293.23 - Step 4: Simplify right side
68,737.87x = 4,662,113,691.71 - Step 5: Solve for x
x = 4,662,113,691.71/68,737.87 - Step 6: Final answer
x = 67,824.53
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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.