Finding the Fourth Proportional to 81,336.79, 112,244.75 and 45,526.81
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Solution
The fourth proportional to 81,336.79, 112,244.75 and 45,526.81 is: 62,826.99
Step by Step Solution
- Step 1: Write the proportion equation
81,336.79 : 112,244.75 = 45,526.81 : x - Step 2: Convert to fraction form
81,336.79/112,244.75 = 45,526.81/x - Step 3: Cross multiply
81,336.79x = 112,244.75 × 45,526.81 - Step 4: Simplify right side
81,336.79x = 5,110,145,535.77 - Step 5: Solve for x
x = 5,110,145,535.77/81,336.79 - Step 6: Final answer
x = 62,826.99
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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.