Finding the Fourth Proportional to 92,756.97, 139,135.86 and 39,435.21
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Solution
The fourth proportional to 92,756.97, 139,135.86 and 39,435.21 is: 59,152.99
Step by Step Solution
- Step 1: Write the proportion equation
92,756.97 : 139,135.86 = 39,435.21 : x - Step 2: Convert to fraction form
92,756.97/139,135.86 = 39,435.21/x - Step 3: Cross multiply
92,756.97x = 139,135.86 × 39,435.21 - Step 4: Simplify right side
92,756.97x = 5,486,851,857.63 - Step 5: Solve for x
x = 5,486,851,857.63/92,756.97 - Step 6: Final answer
x = 59,152.99
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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.