Finding the Fourth Proportional to 77,135.84, 115,584.08 and 53,489.51
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Solution
The fourth proportional to 77,135.84, 115,584.08 and 53,489.51 is: 80,151.27
Step by Step Solution
- Step 1: Write the proportion equation
77,135.84 : 115,584.08 = 53,489.51 : x - Step 2: Convert to fraction form
77,135.84/115,584.08 = 53,489.51/x - Step 3: Cross multiply
77,135.84x = 115,584.08 × 53,489.51 - Step 4: Simplify right side
77,135.84x = 6,182,534,957.63 - Step 5: Solve for x
x = 6,182,534,957.63/77,135.84 - Step 6: Final answer
x = 80,151.27
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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.