Finding the Fourth Proportional to 91,056.42, 125,678.03 and 59,169.96
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Solution
The fourth proportional to 91,056.42, 125,678.03 and 59,169.96 is: 81,667.65
Step by Step Solution
- Step 1: Write the proportion equation
91,056.42 : 125,678.03 = 59,169.96 : x - Step 2: Convert to fraction form
91,056.42/125,678.03 = 59,169.96/x - Step 3: Cross multiply
91,056.42x = 125,678.03 × 59,169.96 - Step 4: Simplify right side
91,056.42x = 7,436,363,712.13 - Step 5: Solve for x
x = 7,436,363,712.13/91,056.42 - Step 6: Final answer
x = 81,667.65
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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.