Finding the Fourth Proportional to 75,171.84, 112,775.18 and 21,865.08
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Solution
The fourth proportional to 75,171.84, 112,775.18 and 21,865.08 is: 32,802.69
Step by Step Solution
- Step 1: Write the proportion equation
75,171.84 : 112,775.18 = 21,865.08 : x - Step 2: Convert to fraction form
75,171.84/112,775.18 = 21,865.08/x - Step 3: Cross multiply
75,171.84x = 112,775.18 × 21,865.08 - Step 4: Simplify right side
75,171.84x = 2,465,838,223.39 - Step 5: Solve for x
x = 2,465,838,223.39/75,171.84 - Step 6: Final answer
x = 32,802.69
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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.