Finding the Fourth Proportional to 93,412.53, 128,912.13 and 53,132.08
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Solution
The fourth proportional to 93,412.53, 128,912.13 and 53,132.08 is: 73,323.88
Step by Step Solution
- Step 1: Write the proportion equation
93,412.53 : 128,912.13 = 53,132.08 : x - Step 2: Convert to fraction form
93,412.53/128,912.13 = 53,132.08/x - Step 3: Cross multiply
93,412.53x = 128,912.13 × 53,132.08 - Step 4: Simplify right side
93,412.53x = 6,849,369,604.13 - Step 5: Solve for x
x = 6,849,369,604.13/93,412.53 - Step 6: Final answer
x = 73,323.88
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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.