Finding the Fourth Proportional to 91,943.22, 137,936.97 and 31,962.99
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Solution
The fourth proportional to 91,943.22, 137,936.97 and 31,962.99 is: 47,952.18
Step by Step Solution
- Step 1: Write the proportion equation
91,943.22 : 137,936.97 = 31,962.99 : x - Step 2: Convert to fraction form
91,943.22/137,936.97 = 31,962.99/x - Step 3: Cross multiply
91,943.22x = 137,936.97 × 31,962.99 - Step 4: Simplify right side
91,943.22x = 4,408,877,992.74 - Step 5: Solve for x
x = 4,408,877,992.74/91,943.22 - Step 6: Final answer
x = 47,952.18
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.