Finding the Fourth Proportional to 81,115.41, 121,663.53 and 24,955.41
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Solution
The fourth proportional to 81,115.41, 121,663.53 and 24,955.41 is: 37,430.17
Step by Step Solution
- Step 1: Write the proportion equation
81,115.41 : 121,663.53 = 24,955.41 : x - Step 2: Convert to fraction form
81,115.41/121,663.53 = 24,955.41/x - Step 3: Cross multiply
81,115.41x = 121,663.53 × 24,955.41 - Step 4: Simplify right side
81,115.41x = 3,036,163,273.20 - Step 5: Solve for x
x = 3,036,163,273.20/81,115.41 - Step 6: Final answer
x = 37,430.17
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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.