Finding the Fourth Proportional to 76,572.18, 114,858.24 and 23,985.75
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Solution
The fourth proportional to 76,572.18, 114,858.24 and 23,985.75 is: 35,978.62
Step by Step Solution
- Step 1: Write the proportion equation
76,572.18 : 114,858.24 = 23,985.75 : x - Step 2: Convert to fraction form
76,572.18/114,858.24 = 23,985.75/x - Step 3: Cross multiply
76,572.18x = 114,858.24 × 23,985.75 - Step 4: Simplify right side
76,572.18x = 2,754,961,030.08 - Step 5: Solve for x
x = 2,754,961,030.08/76,572.18 - Step 6: Final answer
x = 35,978.62
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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.