Finding the Fourth Proportional to 86,740.02, 129,902.13 and 44,509.02
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Solution
The fourth proportional to 86,740.02, 129,902.13 and 44,509.02 is: 66,656.85
Step by Step Solution
- Step 1: Write the proportion equation
86,740.02 : 129,902.13 = 44,509.02 : x - Step 2: Convert to fraction form
86,740.02/129,902.13 = 44,509.02/x - Step 3: Cross multiply
86,740.02x = 129,902.13 × 44,509.02 - Step 4: Simplify right side
86,740.02x = 5,781,816,502.21 - Step 5: Solve for x
x = 5,781,816,502.21/86,740.02 - Step 6: Final answer
x = 66,656.85
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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.