Finding the Fourth Proportional to 81,483.84, 122,230.08 and 28,898.88
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Solution
The fourth proportional to 81,483.84, 122,230.08 and 28,898.88 is: 43,349.85
Step by Step Solution
- Step 1: Write the proportion equation
81,483.84 : 122,230.08 = 28,898.88 : x - Step 2: Convert to fraction form
81,483.84/122,230.08 = 28,898.88/x - Step 3: Cross multiply
81,483.84x = 122,230.08 × 28,898.88 - Step 4: Simplify right side
81,483.84x = 3,532,312,414.31 - Step 5: Solve for x
x = 3,532,312,414.31/81,483.84 - Step 6: Final answer
x = 43,349.85
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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.