Finding the Fourth Proportional to 75,364.68, 112,939.95 and 55,487.28
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Solution
The fourth proportional to 75,364.68, 112,939.95 and 55,487.28 is: 83,152.09
Step by Step Solution
- Step 1: Write the proportion equation
75,364.68 : 112,939.95 = 55,487.28 : x - Step 2: Convert to fraction form
75,364.68/112,939.95 = 55,487.28/x - Step 3: Cross multiply
75,364.68x = 112,939.95 × 55,487.28 - Step 4: Simplify right side
75,364.68x = 6,266,730,628.84 - Step 5: Solve for x
x = 6,266,730,628.84/75,364.68 - Step 6: Final answer
x = 83,152.09
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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.