Finding the Fourth Proportional to 75,126.08, 103,673.04 and 45,318.08
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Solution
The fourth proportional to 75,126.08, 103,673.04 and 45,318.08 is: 62,538.38
Step by Step Solution
- Step 1: Write the proportion equation
75,126.08 : 103,673.04 = 45,318.08 : x - Step 2: Convert to fraction form
75,126.08/103,673.04 = 45,318.08/x - Step 3: Cross multiply
75,126.08x = 103,673.04 × 45,318.08 - Step 4: Simplify right side
75,126.08x = 4,698,263,120.56 - Step 5: Solve for x
x = 4,698,263,120.56/75,126.08 - Step 6: Final answer
x = 62,538.38
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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.