Finding the Fourth Proportional to 68,700.42, 102,916.44 and 47,349.32
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Solution
The fourth proportional to 68,700.42, 102,916.44 and 47,349.32 is: 70,931.49
Step by Step Solution
- Step 1: Write the proportion equation
68,700.42 : 102,916.44 = 47,349.32 : x - Step 2: Convert to fraction form
68,700.42/102,916.44 = 47,349.32/x - Step 3: Cross multiply
68,700.42x = 102,916.44 × 47,349.32 - Step 4: Simplify right side
68,700.42x = 4,873,022,936.24 - Step 5: Solve for x
x = 4,873,022,936.24/68,700.42 - Step 6: Final answer
x = 70,931.49
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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.