Finding the Fourth Proportional to 91,400.81, 137,050.97 and 28,203.68
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Solution
The fourth proportional to 91,400.81, 137,050.97 and 28,203.68 is: 42,290.02
Step by Step Solution
- Step 1: Write the proportion equation
91,400.81 : 137,050.97 = 28,203.68 : x - Step 2: Convert to fraction form
91,400.81/137,050.97 = 28,203.68/x - Step 3: Cross multiply
91,400.81x = 137,050.97 × 28,203.68 - Step 4: Simplify right side
91,400.81x = 3,865,341,903.18 - Step 5: Solve for x
x = 3,865,341,903.18/91,400.81 - Step 6: Final answer
x = 42,290.02
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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.