Finding the Fourth Proportional to 77,812.28, 107,381.95 and 45,566.99
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Solution
The fourth proportional to 77,812.28, 107,381.95 and 45,566.99 is: 62,883.03
Step by Step Solution
- Step 1: Write the proportion equation
77,812.28 : 107,381.95 = 45,566.99 : x - Step 2: Convert to fraction form
77,812.28/107,381.95 = 45,566.99/x - Step 3: Cross multiply
77,812.28x = 107,381.95 × 45,566.99 - Step 4: Simplify right side
77,812.28x = 4,893,071,704.92 - Step 5: Solve for x
x = 4,893,071,704.92/77,812.28 - Step 6: Final answer
x = 62,883.03
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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.