Finding the Fourth Proportional to 93,147.99, 128,558.07 and 54,895.32
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Solution
The fourth proportional to 93,147.99, 128,558.07 and 54,895.32 is: 75,763.70
Step by Step Solution
- Step 1: Write the proportion equation
93,147.99 : 128,558.07 = 54,895.32 : x - Step 2: Convert to fraction form
93,147.99/128,558.07 = 54,895.32/x - Step 3: Cross multiply
93,147.99x = 128,558.07 × 54,895.32 - Step 4: Simplify right side
93,147.99x = 7,057,236,391.23 - Step 5: Solve for x
x = 7,057,236,391.23/93,147.99 - Step 6: Final answer
x = 75,763.70
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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.