Finding the Fourth Proportional to 83,611.08, 115,362.84 and 47,313.12
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Solution
The fourth proportional to 83,611.08, 115,362.84 and 47,313.12 is: 65,280.53
Step by Step Solution
- Step 1: Write the proportion equation
83,611.08 : 115,362.84 = 47,313.12 : x - Step 2: Convert to fraction form
83,611.08/115,362.84 = 47,313.12/x - Step 3: Cross multiply
83,611.08x = 115,362.84 × 47,313.12 - Step 4: Simplify right side
83,611.08x = 5,458,175,892.46 - Step 5: Solve for x
x = 5,458,175,892.46/83,611.08 - Step 6: Final answer
x = 65,280.53
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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.