Finding the Fourth Proportional to 93,086.57, 128,459.36 and 50,644.80
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Solution
The fourth proportional to 93,086.57, 128,459.36 and 50,644.80 is: 69,889.77
Step by Step Solution
- Step 1: Write the proportion equation
93,086.57 : 128,459.36 = 50,644.80 : x - Step 2: Convert to fraction form
93,086.57/128,459.36 = 50,644.80/x - Step 3: Cross multiply
93,086.57x = 128,459.36 × 50,644.80 - Step 4: Simplify right side
93,086.57x = 6,505,798,342.10 - Step 5: Solve for x
x = 6,505,798,342.10/93,086.57 - Step 6: Final answer
x = 69,889.77
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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.