Finding the Fourth Proportional to 89,280.21, 133,955.19 and 39,325.17
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Solution
The fourth proportional to 89,280.21, 133,955.19 and 39,325.17 is: 59,003.12
Step by Step Solution
- Step 1: Write the proportion equation
89,280.21 : 133,955.19 = 39,325.17 : x - Step 2: Convert to fraction form
89,280.21/133,955.19 = 39,325.17/x - Step 3: Cross multiply
89,280.21x = 133,955.19 × 39,325.17 - Step 4: Simplify right side
89,280.21x = 5,267,810,619.13 - Step 5: Solve for x
x = 5,267,810,619.13/89,280.21 - Step 6: Final answer
x = 59,003.12
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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.