Finding the Fourth Proportional to 83,425.60, 115,035.09 and 53,162.99
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Solution
The fourth proportional to 83,425.60, 115,035.09 and 53,162.99 is: 73,306.15
Step by Step Solution
- Step 1: Write the proportion equation
83,425.60 : 115,035.09 = 53,162.99 : x - Step 2: Convert to fraction form
83,425.60/115,035.09 = 53,162.99/x - Step 3: Cross multiply
83,425.60x = 115,035.09 × 53,162.99 - Step 4: Simplify right side
83,425.60x = 6,115,609,339.32 - Step 5: Solve for x
x = 6,115,609,339.32/83,425.60 - Step 6: Final answer
x = 73,306.15
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1.5x scale
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.