Finding the Fourth Proportional to 70,749.81, 106,124.71 and 48,495.72
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Solution
The fourth proportional to 70,749.81, 106,124.71 and 48,495.72 is: 72,743.58
Step by Step Solution
- Step 1: Write the proportion equation
70,749.81 : 106,124.71 = 48,495.72 : x - Step 2: Convert to fraction form
70,749.81/106,124.71 = 48,495.72/x - Step 3: Cross multiply
70,749.81x = 106,124.71 × 48,495.72 - Step 4: Simplify right side
70,749.81x = 5,146,594,221.24 - Step 5: Solve for x
x = 5,146,594,221.24/70,749.81 - Step 6: Final answer
x = 72,743.58
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1.5x scale
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.