Finding the Fourth Proportional to 97,142.36, 145,737.84 and 30,579.80
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Solution
The fourth proportional to 97,142.36, 145,737.84 and 30,579.80 is: 45,877.35
Step by Step Solution
- Step 1: Write the proportion equation
97,142.36 : 145,737.84 = 30,579.80 : x - Step 2: Convert to fraction form
97,142.36/145,737.84 = 30,579.80/x - Step 3: Cross multiply
97,142.36x = 145,737.84 × 30,579.80 - Step 4: Simplify right side
97,142.36x = 4,456,633,999.63 - Step 5: Solve for x
x = 4,456,633,999.63/97,142.36 - Step 6: Final answer
x = 45,877.35
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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.