Finding the Fourth Proportional to 96,997.53, 133,811.67 and 56,712.99
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Solution
The fourth proportional to 96,997.53, 133,811.67 and 56,712.99 is: 78,237.66
Step by Step Solution
- Step 1: Write the proportion equation
96,997.53 : 133,811.67 = 56,712.99 : x - Step 2: Convert to fraction form
96,997.53/133,811.67 = 56,712.99/x - Step 3: Cross multiply
96,997.53x = 133,811.67 × 56,712.99 - Step 4: Simplify right side
96,997.53x = 7,588,859,902.59 - Step 5: Solve for x
x = 7,588,859,902.59/96,997.53 - Step 6: Final answer
x = 78,237.66
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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.