Finding the Fourth Proportional to 77,480.91, 106,927.16 and 60,684.75
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Solution
The fourth proportional to 77,480.91, 106,927.16 and 60,684.75 is: 83,747.70
Step by Step Solution
- Step 1: Write the proportion equation
77,480.91 : 106,927.16 = 60,684.75 : x - Step 2: Convert to fraction form
77,480.91/106,927.16 = 60,684.75/x - Step 3: Cross multiply
77,480.91x = 106,927.16 × 60,684.75 - Step 4: Simplify right side
77,480.91x = 6,488,847,669.39 - Step 5: Solve for x
x = 6,488,847,669.39/77,480.91 - Step 6: Final answer
x = 83,747.70
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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.