Finding the Fourth Proportional to 93,440.64, 128,979.36 and 57,614.88
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Solution
The fourth proportional to 93,440.64, 128,979.36 and 57,614.88 is: 79,527.82
Step by Step Solution
- Step 1: Write the proportion equation
93,440.64 : 128,979.36 = 57,614.88 : x - Step 2: Convert to fraction form
93,440.64/128,979.36 = 57,614.88/x - Step 3: Cross multiply
93,440.64x = 128,979.36 × 57,614.88 - Step 4: Simplify right side
93,440.64x = 7,431,130,348.88 - Step 5: Solve for x
x = 7,431,130,348.88/93,440.64 - Step 6: Final answer
x = 79,527.82
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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.