Finding the Fourth Proportional to 83,686.19, 115,487.76 and 45,960.44
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Solution
The fourth proportional to 83,686.19, 115,487.76 and 45,960.44 is: 63,425.86
Step by Step Solution
- Step 1: Write the proportion equation
83,686.19 : 115,487.76 = 45,960.44 : x - Step 2: Convert to fraction form
83,686.19/115,487.76 = 45,960.44/x - Step 3: Cross multiply
83,686.19x = 115,487.76 × 45,960.44 - Step 4: Simplify right side
83,686.19x = 5,307,868,264.21 - Step 5: Solve for x
x = 5,307,868,264.21/83,686.19 - Step 6: Final answer
x = 63,425.86
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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.