Finding the Fourth Proportional to 84,412.41, 116,241.12 and 75,456.65
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Solution
The fourth proportional to 84,412.41, 116,241.12 and 75,456.65 is: 103,908.48
Step by Step Solution
- Step 1: Write the proportion equation
84,412.41 : 116,241.12 = 75,456.65 : x - Step 2: Convert to fraction form
84,412.41/116,241.12 = 75,456.65/x - Step 3: Cross multiply
84,412.41x = 116,241.12 × 75,456.65 - Step 4: Simplify right side
84,412.41x = 8,771,164,926.24 - Step 5: Solve for x
x = 8,771,164,926.24/84,412.41 - Step 6: Final answer
x = 103,908.48
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1.5x scale
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.