Finding the Fourth Proportional to 83,641.99, 115,448.07 and 51,792.79
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Solution
The fourth proportional to 83,641.99, 115,448.07 and 51,792.79 is: 71,487.75
Step by Step Solution
- Step 1: Write the proportion equation
83,641.99 : 115,448.07 = 51,792.79 : x - Step 2: Convert to fraction form
83,641.99/115,448.07 = 51,792.79/x - Step 3: Cross multiply
83,641.99x = 115,448.07 × 51,792.79 - Step 4: Simplify right side
83,641.99x = 5,979,377,645.42 - Step 5: Solve for x
x = 5,979,377,645.42/83,641.99 - Step 6: Final answer
x = 71,487.75
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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.