Finding the Fourth Proportional to 93,933.90, 129,629.84 and 53,653.01
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Solution
The fourth proportional to 93,933.90, 129,629.84 and 53,653.01 is: 74,041.75
Step by Step Solution
- Step 1: Write the proportion equation
93,933.90 : 129,629.84 = 53,653.01 : x - Step 2: Convert to fraction form
93,933.90/129,629.84 = 53,653.01/x - Step 3: Cross multiply
93,933.90x = 129,629.84 × 53,653.01 - Step 4: Simplify right side
93,933.90x = 6,955,030,185.40 - Step 5: Solve for x
x = 6,955,030,185.40/93,933.90 - Step 6: Final answer
x = 74,041.75
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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.