Finding the Fourth Proportional to 80,070.06, 110,504.70 and 68,776.86
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Solution
The fourth proportional to 80,070.06, 110,504.70 and 68,776.86 is: 94,918.95
Step by Step Solution
- Step 1: Write the proportion equation
80,070.06 : 110,504.70 = 68,776.86 : x - Step 2: Convert to fraction form
80,070.06/110,504.70 = 68,776.86/x - Step 3: Cross multiply
80,070.06x = 110,504.70 × 68,776.86 - Step 4: Simplify right side
80,070.06x = 7,600,166,281.24 - Step 5: Solve for x
x = 7,600,166,281.24/80,070.06 - Step 6: Final answer
x = 94,918.95
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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.