Finding the Fourth Proportional to 70,973.28, 106,357.86 and 48,811.68
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Solution
The fourth proportional to 70,973.28, 106,357.86 and 48,811.68 is: 73,147.33
Step by Step Solution
- Step 1: Write the proportion equation
70,973.28 : 106,357.86 = 48,811.68 : x - Step 2: Convert to fraction form
70,973.28/106,357.86 = 48,811.68/x - Step 3: Cross multiply
70,973.28x = 106,357.86 × 48,811.68 - Step 4: Simplify right side
70,973.28x = 5,191,505,827.80 - Step 5: Solve for x
x = 5,191,505,827.80/70,973.28 - Step 6: Final answer
x = 73,147.33
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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.