Finding the Fourth Proportional to 77,516.70, 106,944.35 and 48,828.66
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Solution
The fourth proportional to 77,516.70, 106,944.35 and 48,828.66 is: 67,365.47
Step by Step Solution
- Step 1: Write the proportion equation
77,516.70 : 106,944.35 = 48,828.66 : x - Step 2: Convert to fraction form
77,516.70/106,944.35 = 48,828.66/x - Step 3: Cross multiply
77,516.70x = 106,944.35 × 48,828.66 - Step 4: Simplify right side
77,516.70x = 5,221,949,060.93 - Step 5: Solve for x
x = 5,221,949,060.93/77,516.70 - Step 6: Final answer
x = 67,365.47
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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.