Finding the Fourth Proportional to 77,322.04, 106,755.82 and 59,384.99
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Solution
The fourth proportional to 77,322.04, 106,755.82 and 59,384.99 is: 81,990.77
Step by Step Solution
- Step 1: Write the proportion equation
77,322.04 : 106,755.82 = 59,384.99 : x - Step 2: Convert to fraction form
77,322.04/106,755.82 = 59,384.99/x - Step 3: Cross multiply
77,322.04x = 106,755.82 × 59,384.99 - Step 4: Simplify right side
77,322.04x = 6,339,693,421.57 - Step 5: Solve for x
x = 6,339,693,421.57/77,322.04 - Step 6: Final answer
x = 81,990.77
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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.