Finding the Fourth Proportional to 97,781.37, 134,941.50 and 55,338.99
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Solution
The fourth proportional to 97,781.37, 134,941.50 and 55,338.99 is: 76,369.62
Step by Step Solution
- Step 1: Write the proportion equation
97,781.37 : 134,941.50 = 55,338.99 : x - Step 2: Convert to fraction form
97,781.37/134,941.50 = 55,338.99/x - Step 3: Cross multiply
97,781.37x = 134,941.50 × 55,338.99 - Step 4: Simplify right side
97,781.37x = 7,467,526,319.09 - Step 5: Solve for x
x = 7,467,526,319.09/97,781.37 - Step 6: Final answer
x = 76,369.62
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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.