Finding the Fourth Proportional to 87,853.88, 121,237.82 and 47,566.79
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Solution
The fourth proportional to 87,853.88, 121,237.82 and 47,566.79 is: 65,641.88
Step by Step Solution
- Step 1: Write the proportion equation
87,853.88 : 121,237.82 = 47,566.79 : x - Step 2: Convert to fraction form
87,853.88/121,237.82 = 47,566.79/x - Step 3: Cross multiply
87,853.88x = 121,237.82 × 47,566.79 - Step 4: Simplify right side
87,853.88x = 5,766,893,317.81 - Step 5: Solve for x
x = 5,766,893,317.81/87,853.88 - Step 6: Final answer
x = 65,641.88
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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.