Finding the Fourth Proportional to 81,346.16, 121,990.64 and 24,403.08
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Solution
The fourth proportional to 81,346.16, 121,990.64 and 24,403.08 is: 36,596.04
Step by Step Solution
- Step 1: Write the proportion equation
81,346.16 : 121,990.64 = 24,403.08 : x - Step 2: Convert to fraction form
81,346.16/121,990.64 = 24,403.08/x - Step 3: Cross multiply
81,346.16x = 121,990.64 × 24,403.08 - Step 4: Simplify right side
81,346.16x = 2,976,947,225.16 - Step 5: Solve for x
x = 2,976,947,225.16/81,346.16 - Step 6: Final answer
x = 36,596.04
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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.