Finding the Fourth Proportional to 70,871.24, 106,319.94 and 29,321.48
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Solution
The fourth proportional to 70,871.24, 106,319.94 and 29,321.48 is: 43,987.63
Step by Step Solution
- Step 1: Write the proportion equation
70,871.24 : 106,319.94 = 29,321.48 : x - Step 2: Convert to fraction form
70,871.24/106,319.94 = 29,321.48/x - Step 3: Cross multiply
70,871.24x = 106,319.94 × 29,321.48 - Step 4: Simplify right side
70,871.24x = 3,117,457,994.31 - Step 5: Solve for x
x = 3,117,457,994.31/70,871.24 - Step 6: Final answer
x = 43,987.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.