Finding the Fourth Proportional to 76,444.37, 105,489.66 and 42,455.05
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Solution
The fourth proportional to 76,444.37, 105,489.66 and 42,455.05 is: 58,585.99
Step by Step Solution
- Step 1: Write the proportion equation
76,444.37 : 105,489.66 = 42,455.05 : x - Step 2: Convert to fraction form
76,444.37/105,489.66 = 42,455.05/x - Step 3: Cross multiply
76,444.37x = 105,489.66 × 42,455.05 - Step 4: Simplify right side
76,444.37x = 4,478,569,039.83 - Step 5: Solve for x
x = 4,478,569,039.83/76,444.37 - Step 6: Final answer
x = 58,585.99
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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.