Finding the Fourth Proportional to 97,809.87, 134,980.83 and 55,367.49
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Solution
The fourth proportional to 97,809.87, 134,980.83 and 55,367.49 is: 76,408.95
Step by Step Solution
- Step 1: Write the proportion equation
97,809.87 : 134,980.83 = 55,367.49 : x - Step 2: Convert to fraction form
97,809.87/134,980.83 = 55,367.49/x - Step 3: Cross multiply
97,809.87x = 134,980.83 × 55,367.49 - Step 4: Simplify right side
97,809.87x = 7,473,549,755.22 - Step 5: Solve for x
x = 7,473,549,755.22/97,809.87 - Step 6: Final answer
x = 76,408.95
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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.