Finding the Fourth Proportional to 88,855.68, 122,412.36 and 61,949.28
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Solution
The fourth proportional to 88,855.68, 122,412.36 and 61,949.28 is: 85,344.66
Step by Step Solution
- Step 1: Write the proportion equation
88,855.68 : 122,412.36 = 61,949.28 : x - Step 2: Convert to fraction form
88,855.68/122,412.36 = 61,949.28/x - Step 3: Cross multiply
88,855.68x = 122,412.36 × 61,949.28 - Step 4: Simplify right side
88,855.68x = 7,583,357,565.10 - Step 5: Solve for x
x = 7,583,357,565.10/88,855.68 - Step 6: Final answer
x = 85,344.66
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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.