Finding the Fourth Proportional to 80,881.59, 121,211.65 and 51,320.19
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Solution
The fourth proportional to 80,881.59, 121,211.65 and 51,320.19 is: 76,910.02
Step by Step Solution
- Step 1: Write the proportion equation
80,881.59 : 121,211.65 = 51,320.19 : x - Step 2: Convert to fraction form
80,881.59/121,211.65 = 51,320.19/x - Step 3: Cross multiply
80,881.59x = 121,211.65 × 51,320.19 - Step 4: Simplify right side
80,881.59x = 6,220,604,908.21 - Step 5: Solve for x
x = 6,220,604,908.21/80,881.59 - Step 6: Final answer
x = 76,910.02
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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.