Finding the Fourth Proportional to 74,835.60, 103,219.08 and 50,920.08
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Solution
The fourth proportional to 74,835.60, 103,219.08 and 50,920.08 is: 70,232.93
Step by Step Solution
- Step 1: Write the proportion equation
74,835.60 : 103,219.08 = 50,920.08 : x - Step 2: Convert to fraction form
74,835.60/103,219.08 = 50,920.08/x - Step 3: Cross multiply
74,835.60x = 103,219.08 × 50,920.08 - Step 4: Simplify right side
74,835.60x = 5,255,923,811.13 - Step 5: Solve for x
x = 5,255,923,811.13/74,835.60 - Step 6: Final answer
x = 70,232.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.