Finding the Fourth Proportional to 68,298.24, 102,460.80 and 28,855.20
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Solution
The fourth proportional to 68,298.24, 102,460.80 and 28,855.20 is: 43,288.48
Step by Step Solution
- Step 1: Write the proportion equation
68,298.24 : 102,460.80 = 28,855.20 : x - Step 2: Convert to fraction form
68,298.24/102,460.80 = 28,855.20/x - Step 3: Cross multiply
68,298.24x = 102,460.80 × 28,855.20 - Step 4: Simplify right side
68,298.24x = 2,956,526,876.16 - Step 5: Solve for x
x = 2,956,526,876.16/68,298.24 - Step 6: Final answer
x = 43,288.48
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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.