Finding the Fourth Proportional to 92,998.42, 139,515.59 and 39,689.62
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Solution
The fourth proportional to 92,998.42, 139,515.59 and 39,689.62 is: 59,542.09
Step by Step Solution
- Step 1: Write the proportion equation
92,998.42 : 139,515.59 = 39,689.62 : x - Step 2: Convert to fraction form
92,998.42/139,515.59 = 39,689.62/x - Step 3: Cross multiply
92,998.42x = 139,515.59 × 39,689.62 - Step 4: Simplify right side
92,998.42x = 5,537,320,751.18 - Step 5: Solve for x
x = 5,537,320,751.18/92,998.42 - Step 6: Final answer
x = 59,542.09
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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.