Finding the Fourth Proportional to 93,141.36, 128,531.34 and 50,699.88
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Solution
The fourth proportional to 93,141.36, 128,531.34 and 50,699.88 is: 69,963.80
Step by Step Solution
- Step 1: Write the proportion equation
93,141.36 : 128,531.34 = 50,699.88 : x - Step 2: Convert to fraction form
93,141.36/128,531.34 = 50,699.88/x - Step 3: Cross multiply
93,141.36x = 128,531.34 × 50,699.88 - Step 4: Simplify right side
93,141.36x = 6,516,523,514.24 - Step 5: Solve for x
x = 6,516,523,514.24/93,141.36 - Step 6: Final answer
x = 69,963.80
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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.