Finding the Fourth Proportional to 84,813.70, 127,346.10 and 47,448.40
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Solution
The fourth proportional to 84,813.70, 127,346.10 and 47,448.40 is: 71,242.84
Step by Step Solution
- Step 1: Write the proportion equation
84,813.70 : 127,346.10 = 47,448.40 : x - Step 2: Convert to fraction form
84,813.70/127,346.10 = 47,448.40/x - Step 3: Cross multiply
84,813.70x = 127,346.10 × 47,448.40 - Step 4: Simplify right side
84,813.70x = 6,042,368,691.24 - Step 5: Solve for x
x = 6,042,368,691.24/84,813.70 - Step 6: Final answer
x = 71,242.84
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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.