Finding the Fourth Proportional to 88,109.99, 121,562.84 and 49,865.74
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Solution
The fourth proportional to 88,109.99, 121,562.84 and 49,865.74 is: 68,798.34
Step by Step Solution
- Step 1: Write the proportion equation
88,109.99 : 121,562.84 = 49,865.74 : x - Step 2: Convert to fraction form
88,109.99/121,562.84 = 49,865.74/x - Step 3: Cross multiply
88,109.99x = 121,562.84 × 49,865.74 - Step 4: Simplify right side
88,109.99x = 6,061,821,477.65 - Step 5: Solve for x
x = 6,061,821,477.65/88,109.99 - Step 6: Final answer
x = 68,798.34
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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.