Finding the Fourth Proportional to 79,512.36, 109,611.48 and 55,564.68
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Solution
The fourth proportional to 79,512.36, 109,611.48 and 55,564.68 is: 76,598.49
Step by Step Solution
- Step 1: Write the proportion equation
79,512.36 : 109,611.48 = 55,564.68 : x - Step 2: Convert to fraction form
79,512.36/109,611.48 = 55,564.68/x - Step 3: Cross multiply
79,512.36x = 109,611.48 × 55,564.68 - Step 4: Simplify right side
79,512.36x = 6,090,526,810.53 - Step 5: Solve for x
x = 6,090,526,810.53/79,512.36 - Step 6: Final answer
x = 76,598.49
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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.