Finding the Fourth Proportional to 76,318.24, 105,325.48 and 42,337.68
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Solution
The fourth proportional to 76,318.24, 105,325.48 and 42,337.68 is: 58,429.50
Step by Step Solution
- Step 1: Write the proportion equation
76,318.24 : 105,325.48 = 42,337.68 : x - Step 2: Convert to fraction form
76,318.24/105,325.48 = 42,337.68/x - Step 3: Cross multiply
76,318.24x = 105,325.48 × 42,337.68 - Step 4: Simplify right side
76,318.24x = 4,459,236,468.09 - Step 5: Solve for x
x = 4,459,236,468.09/76,318.24 - Step 6: Final answer
x = 58,429.50
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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.