Finding the Fourth Proportional to 83,613.08, 115,380.06 and 47,804.60
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Solution
The fourth proportional to 83,613.08, 115,380.06 and 47,804.60 is: 65,966.92
Step by Step Solution
- Step 1: Write the proportion equation
83,613.08 : 115,380.06 = 47,804.60 : x - Step 2: Convert to fraction form
83,613.08/115,380.06 = 47,804.60/x - Step 3: Cross multiply
83,613.08x = 115,380.06 × 47,804.60 - Step 4: Simplify right side
83,613.08x = 5,515,697,616.28 - Step 5: Solve for x
x = 5,515,697,616.28/83,613.08 - Step 6: Final answer
x = 65,966.92
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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.