Finding the Fourth Proportional to 75,865.84, 104,694.76 and 42,331.84
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Solution
The fourth proportional to 75,865.84, 104,694.76 and 42,331.84 is: 58,417.88
Step by Step Solution
- Step 1: Write the proportion equation
75,865.84 : 104,694.76 = 42,331.84 : x - Step 2: Convert to fraction form
75,865.84/104,694.76 = 42,331.84/x - Step 3: Cross multiply
75,865.84x = 104,694.76 × 42,331.84 - Step 4: Simplify right side
75,865.84x = 4,431,921,829.16 - Step 5: Solve for x
x = 4,431,921,829.16/75,865.84 - Step 6: Final answer
x = 58,417.88
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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.