Finding the Fourth Proportional to 84,421.60, 116,451.97 and 58,539.80
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Solution
The fourth proportional to 84,421.60, 116,451.97 and 58,539.80 is: 80,750.37
Step by Step Solution
- Step 1: Write the proportion equation
84,421.60 : 116,451.97 = 58,539.80 : x - Step 2: Convert to fraction form
84,421.60/116,451.97 = 58,539.80/x - Step 3: Cross multiply
84,421.60x = 116,451.97 × 58,539.80 - Step 4: Simplify right side
84,421.60x = 6,817,075,178.19 - Step 5: Solve for x
x = 6,817,075,178.19/84,421.60 - Step 6: Final answer
x = 80,750.37
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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.