Finding the Fourth Proportional to 76,798.80, 115,214.40 and 32,402.70
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Solution
The fourth proportional to 76,798.80, 115,214.40 and 32,402.70 is: 48,610.89
Step by Step Solution
- Step 1: Write the proportion equation
76,798.80 : 115,214.40 = 32,402.70 : x - Step 2: Convert to fraction form
76,798.80/115,214.40 = 32,402.70/x - Step 3: Cross multiply
76,798.80x = 115,214.40 × 32,402.70 - Step 4: Simplify right side
76,798.80x = 3,733,257,638.88 - Step 5: Solve for x
x = 3,733,257,638.88/76,798.80 - Step 6: Final answer
x = 48,610.89
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1.5x scale
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.