Finding the Fourth Proportional to 83,963.36, 115,672.36 and 58,425.81
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Solution
The fourth proportional to 83,963.36, 115,672.36 and 58,425.81 is: 80,490.48
Step by Step Solution
- Step 1: Write the proportion equation
83,963.36 : 115,672.36 = 58,425.81 : x - Step 2: Convert to fraction form
83,963.36/115,672.36 = 58,425.81/x - Step 3: Cross multiply
83,963.36x = 115,672.36 × 58,425.81 - Step 4: Simplify right side
83,963.36x = 6,758,251,035.48 - Step 5: Solve for x
x = 6,758,251,035.48/83,963.36 - Step 6: Final answer
x = 80,490.48
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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.