Finding the Fourth Proportional to 93,918.64, 129,621.01 and 58,120.19
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Solution
The fourth proportional to 93,918.64, 129,621.01 and 58,120.19 is: 80,214.08
Step by Step Solution
- Step 1: Write the proportion equation
93,918.64 : 129,621.01 = 58,120.19 : x - Step 2: Convert to fraction form
93,918.64/129,621.01 = 58,120.19/x - Step 3: Cross multiply
93,918.64x = 129,621.01 × 58,120.19 - Step 4: Simplify right side
93,918.64x = 7,533,597,081.09 - Step 5: Solve for x
x = 7,533,597,081.09/93,918.64 - Step 6: Final answer
x = 80,214.08
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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.