Finding the Fourth Proportional to 74,683.80, 112,025.70 and 47,035.80
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Solution
The fourth proportional to 74,683.80, 112,025.70 and 47,035.80 is: 70,553.70
Step by Step Solution
- Step 1: Write the proportion equation
74,683.80 : 112,025.70 = 47,035.80 : x - Step 2: Convert to fraction form
74,683.80/112,025.70 = 47,035.80/x - Step 3: Cross multiply
74,683.80x = 112,025.70 × 47,035.80 - Step 4: Simplify right side
74,683.80x = 5,269,218,420.06 - Step 5: Solve for x
x = 5,269,218,420.06/74,683.80 - Step 6: Final answer
x = 70,553.70
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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.