Finding the Fourth Proportional to 86,158.69, 118,898.99 and 48,432.94
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Solution
The fourth proportional to 86,158.69, 118,898.99 and 48,432.94 is: 66,837.45
Step by Step Solution
- Step 1: Write the proportion equation
86,158.69 : 118,898.99 = 48,432.94 : x - Step 2: Convert to fraction form
86,158.69/118,898.99 = 48,432.94/x - Step 3: Cross multiply
86,158.69x = 118,898.99 × 48,432.94 - Step 4: Simplify right side
86,158.69x = 5,758,627,406.57 - Step 5: Solve for x
x = 5,758,627,406.57/86,158.69 - Step 6: Final answer
x = 66,837.45
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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.