Finding the Fourth Proportional to 97,939.88, 135,154.44 and 55,512.08
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Solution
The fourth proportional to 97,939.88, 135,154.44 and 55,512.08 is: 76,605.20
Step by Step Solution
- Step 1: Write the proportion equation
97,939.88 : 135,154.44 = 55,512.08 : x - Step 2: Convert to fraction form
97,939.88/135,154.44 = 55,512.08/x - Step 3: Cross multiply
97,939.88x = 135,154.44 × 55,512.08 - Step 4: Simplify right side
97,939.88x = 7,502,704,085.64 - Step 5: Solve for x
x = 7,502,704,085.64/97,939.88 - Step 6: Final answer
x = 76,605.20
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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.