Finding the Fourth Proportional to 92,907.24, 128,212.20 and 50,464.84
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Solution
The fourth proportional to 92,907.24, 128,212.20 and 50,464.84 is: 69,641.59
Step by Step Solution
- Step 1: Write the proportion equation
92,907.24 : 128,212.20 = 50,464.84 : x - Step 2: Convert to fraction form
92,907.24/128,212.20 = 50,464.84/x - Step 3: Cross multiply
92,907.24x = 128,212.20 × 50,464.84 - Step 4: Simplify right side
92,907.24x = 6,470,208,159.05 - Step 5: Solve for x
x = 6,470,208,159.05/92,907.24 - Step 6: Final answer
x = 69,641.59
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1.5x scale
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.