Finding the Fourth Proportional to 75,009.05, 103,463.70 and 48,108.95
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Solution
The fourth proportional to 75,009.05, 103,463.70 and 48,108.95 is: 66,359.06
Step by Step Solution
- Step 1: Write the proportion equation
75,009.05 : 103,463.70 = 48,108.95 : x - Step 2: Convert to fraction form
75,009.05/103,463.70 = 48,108.95/x - Step 3: Cross multiply
75,009.05x = 103,463.70 × 48,108.95 - Step 4: Simplify right side
75,009.05x = 4,977,529,452.80 - Step 5: Solve for x
x = 4,977,529,452.80/75,009.05 - Step 6: Final answer
x = 66,359.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.