Finding the Fourth Proportional to 80,764.29, 121,141.98 and 28,177.47
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Solution
The fourth proportional to 80,764.29, 121,141.98 and 28,177.47 is: 42,264.65
Step by Step Solution
- Step 1: Write the proportion equation
80,764.29 : 121,141.98 = 28,177.47 : x - Step 2: Convert to fraction form
80,764.29/121,141.98 = 28,177.47/x - Step 3: Cross multiply
80,764.29x = 121,141.98 × 28,177.47 - Step 4: Simplify right side
80,764.29x = 3,413,474,507.19 - Step 5: Solve for x
x = 3,413,474,507.19/80,764.29 - Step 6: Final answer
x = 42,264.65
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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.