Finding the Fourth Proportional to 76,387.99, 105,428.13 and 44,556.91
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Solution
The fourth proportional to 76,387.99, 105,428.13 and 44,556.91 is: 61,495.95
Step by Step Solution
- Step 1: Write the proportion equation
76,387.99 : 105,428.13 = 44,556.91 : x - Step 2: Convert to fraction form
76,387.99/105,428.13 = 44,556.91/x - Step 3: Cross multiply
76,387.99x = 105,428.13 × 44,556.91 - Step 4: Simplify right side
76,387.99x = 4,697,551,699.88 - Step 5: Solve for x
x = 4,697,551,699.88/76,387.99 - Step 6: Final answer
x = 61,495.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.