Finding the Fourth Proportional to 84,214.81, 116,235.98 and 55,539.65
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Solution
The fourth proportional to 84,214.81, 116,235.98 and 55,539.65 is: 76,657.61
Step by Step Solution
- Step 1: Write the proportion equation
84,214.81 : 116,235.98 = 55,539.65 : x - Step 2: Convert to fraction form
84,214.81/116,235.98 = 55,539.65/x - Step 3: Cross multiply
84,214.81x = 116,235.98 × 55,539.65 - Step 4: Simplify right side
84,214.81x = 6,455,706,076.05 - Step 5: Solve for x
x = 6,455,706,076.05/84,214.81 - Step 6: Final answer
x = 76,657.61
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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.