Finding the Fourth Proportional to 73,888.10, 101,968.02 and 40,354.10
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Solution
The fourth proportional to 73,888.10, 101,968.02 and 40,354.10 is: 55,689.99
Step by Step Solution
- Step 1: Write the proportion equation
73,888.10 : 101,968.02 = 40,354.10 : x - Step 2: Convert to fraction form
73,888.10/101,968.02 = 40,354.10/x - Step 3: Cross multiply
73,888.10x = 101,968.02 × 40,354.10 - Step 4: Simplify right side
73,888.10x = 4,114,827,675.88 - Step 5: Solve for x
x = 4,114,827,675.88/73,888.10 - Step 6: Final answer
x = 55,689.99
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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.