Finding the Fourth Proportional to 93,409.19, 128,905.19 and 50,968.64
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Solution
The fourth proportional to 93,409.19, 128,905.19 and 50,968.64 is: 70,336.99
Step by Step Solution
- Step 1: Write the proportion equation
93,409.19 : 128,905.19 = 50,968.64 : x - Step 2: Convert to fraction form
93,409.19/128,905.19 = 50,968.64/x - Step 3: Cross multiply
93,409.19x = 128,905.19 × 50,968.64 - Step 4: Simplify right side
93,409.19x = 6,570,121,323.87 - Step 5: Solve for x
x = 6,570,121,323.87/93,409.19 - Step 6: Final answer
x = 70,336.99
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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.