Finding the Fourth Proportional to 86,605.76, 129,913.32 and 24,281.12
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Solution
The fourth proportional to 86,605.76, 129,913.32 and 24,281.12 is: 36,422.99
Step by Step Solution
- Step 1: Write the proportion equation
86,605.76 : 129,913.32 = 24,281.12 : x - Step 2: Convert to fraction form
86,605.76/129,913.32 = 24,281.12/x - Step 3: Cross multiply
86,605.76x = 129,913.32 × 24,281.12 - Step 4: Simplify right side
86,605.76x = 3,154,440,912.52 - Step 5: Solve for x
x = 3,154,440,912.52/86,605.76 - Step 6: Final answer
x = 36,422.99
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1.5x scale
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.