Finding the Fourth Proportional to 73,317.12, 101,177.70 and 39,783.12
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Solution
The fourth proportional to 73,317.12, 101,177.70 and 39,783.12 is: 54,900.75
Step by Step Solution
- Step 1: Write the proportion equation
73,317.12 : 101,177.70 = 39,783.12 : x - Step 2: Convert to fraction form
73,317.12/101,177.70 = 39,783.12/x - Step 3: Cross multiply
73,317.12x = 101,177.70 × 39,783.12 - Step 4: Simplify right side
73,317.12x = 4,025,164,580.42 - Step 5: Solve for x
x = 4,025,164,580.42/73,317.12 - Step 6: Final answer
x = 54,900.75
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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.