Finding the Fourth Proportional to 91,323.48, 126,106.56 and 57,390.75
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Solution
The fourth proportional to 91,323.48, 126,106.56 and 57,390.75 is: 79,249.61
Step by Step Solution
- Step 1: Write the proportion equation
91,323.48 : 126,106.56 = 57,390.75 : x - Step 2: Convert to fraction form
91,323.48/126,106.56 = 57,390.75/x - Step 3: Cross multiply
91,323.48x = 126,106.56 × 57,390.75 - Step 4: Simplify right side
91,323.48x = 7,237,350,058.32 - Step 5: Solve for x
x = 7,237,350,058.32/91,323.48 - Step 6: Final answer
x = 79,249.61
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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.