Finding the Fourth Proportional to 77,464.84, 106,865.96 and 45,618.48
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Solution
The fourth proportional to 77,464.84, 106,865.96 and 45,618.48 is: 62,932.59
Step by Step Solution
- Step 1: Write the proportion equation
77,464.84 : 106,865.96 = 45,618.48 : x - Step 2: Convert to fraction form
77,464.84/106,865.96 = 45,618.48/x - Step 3: Cross multiply
77,464.84x = 106,865.96 × 45,618.48 - Step 4: Simplify right side
77,464.84x = 4,875,062,658.94 - Step 5: Solve for x
x = 4,875,062,658.94/77,464.84 - Step 6: Final answer
x = 62,932.59
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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.