Finding the Fourth Proportional to 77,702.48, 107,229.84 and 45,887.08
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Solution
The fourth proportional to 77,702.48, 107,229.84 and 45,887.08 is: 63,324.41
Step by Step Solution
- Step 1: Write the proportion equation
77,702.48 : 107,229.84 = 45,887.08 : x - Step 2: Convert to fraction form
77,702.48/107,229.84 = 45,887.08/x - Step 3: Cross multiply
77,702.48x = 107,229.84 × 45,887.08 - Step 4: Simplify right side
77,702.48x = 4,920,463,710.32 - Step 5: Solve for x
x = 4,920,463,710.32/77,702.48 - Step 6: Final answer
x = 63,324.41
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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.