Finding the Fourth Proportional to 77,313.98, 106,744.68 and 59,376.93
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Solution
The fourth proportional to 77,313.98, 106,744.68 and 59,376.93 is: 81,979.63
Step by Step Solution
- Step 1: Write the proportion equation
77,313.98 : 106,744.68 = 59,376.93 : x - Step 2: Convert to fraction form
77,313.98/106,744.68 = 59,376.93/x - Step 3: Cross multiply
77,313.98x = 106,744.68 × 59,376.93 - Step 4: Simplify right side
77,313.98x = 6,338,171,392.23 - Step 5: Solve for x
x = 6,338,171,392.23/77,313.98 - Step 6: Final answer
x = 81,979.63
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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.