Finding the Fourth Proportional to 74,852.12, 103,313.26 and 49,363.06
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Solution
The fourth proportional to 74,852.12, 103,313.26 and 49,363.06 is: 68,132.45
Step by Step Solution
- Step 1: Write the proportion equation
74,852.12 : 103,313.26 = 49,363.06 : x - Step 2: Convert to fraction form
74,852.12/103,313.26 = 49,363.06/x - Step 3: Cross multiply
74,852.12x = 103,313.26 × 49,363.06 - Step 4: Simplify right side
74,852.12x = 5,099,858,652.18 - Step 5: Solve for x
x = 5,099,858,652.18/74,852.12 - Step 6: Final answer
x = 68,132.45
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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.