Finding the Fourth Proportional to 84,312.40, 126,448.35 and 48,696.70
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Solution
The fourth proportional to 84,312.40, 126,448.35 and 48,696.70 is: 73,033.35
Step by Step Solution
- Step 1: Write the proportion equation
84,312.40 : 126,448.35 = 48,696.70 : x - Step 2: Convert to fraction form
84,312.40/126,448.35 = 48,696.70/x - Step 3: Cross multiply
84,312.40x = 126,448.35 × 48,696.70 - Step 4: Simplify right side
84,312.40x = 6,157,617,365.45 - Step 5: Solve for x
x = 6,157,617,365.45/84,312.40 - Step 6: Final answer
x = 73,033.35
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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.