Finding the Fourth Proportional to 74,642.01, 103,007.09 and 40,652.08
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Solution
The fourth proportional to 74,642.01, 103,007.09 and 40,652.08 is: 56,100.48
Step by Step Solution
- Step 1: Write the proportion equation
74,642.01 : 103,007.09 = 40,652.08 : x - Step 2: Convert to fraction form
74,642.01/103,007.09 = 40,652.08/x - Step 3: Cross multiply
74,642.01x = 103,007.09 × 40,652.08 - Step 4: Simplify right side
74,642.01x = 4,187,452,307.36 - Step 5: Solve for x
x = 4,187,452,307.36/74,642.01 - Step 6: Final answer
x = 56,100.48
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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.