Finding the Fourth Proportional to 88,364.13, 121,902.21 and 52,533.78
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Solution
The fourth proportional to 88,364.13, 121,902.21 and 52,533.78 is: 72,472.66
Step by Step Solution
- Step 1: Write the proportion equation
88,364.13 : 121,902.21 = 52,533.78 : x - Step 2: Convert to fraction form
88,364.13/121,902.21 = 52,533.78/x - Step 3: Cross multiply
88,364.13x = 121,902.21 × 52,533.78 - Step 4: Simplify right side
88,364.13x = 6,403,983,881.65 - Step 5: Solve for x
x = 6,403,983,881.65/88,364.13 - Step 6: Final answer
x = 72,472.66
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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.