Finding the Fourth Proportional to 76,838.08, 115,263.68 and 21,434.08
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Solution
The fourth proportional to 76,838.08, 115,263.68 and 21,434.08 is: 32,152.95
Step by Step Solution
- Step 1: Write the proportion equation
76,838.08 : 115,263.68 = 21,434.08 : x - Step 2: Convert to fraction form
76,838.08/115,263.68 = 21,434.08/x - Step 3: Cross multiply
76,838.08x = 115,263.68 × 21,434.08 - Step 4: Simplify right side
76,838.08x = 2,470,570,938.21 - Step 5: Solve for x
x = 2,470,570,938.21/76,838.08 - Step 6: Final answer
x = 32,152.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.