Finding the Fourth Proportional to 93,453.06, 128,964.34 and 57,628.74
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Solution
The fourth proportional to 93,453.06, 128,964.34 and 57,628.74 is: 79,527.12
Step by Step Solution
- Step 1: Write the proportion equation
93,453.06 : 128,964.34 = 57,628.74 : x - Step 2: Convert to fraction form
93,453.06/128,964.34 = 57,628.74/x - Step 3: Cross multiply
93,453.06x = 128,964.34 × 57,628.74 - Step 4: Simplify right side
93,453.06x = 7,432,052,419.13 - Step 5: Solve for x
x = 7,432,052,419.13/93,453.06 - Step 6: Final answer
x = 79,527.12
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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.