Finding the Fourth Proportional to 93,642.24, 129,221.76 and 53,365.44
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Solution
The fourth proportional to 93,642.24, 129,221.76 and 53,365.44 is: 73,641.72
Step by Step Solution
- Step 1: Write the proportion equation
93,642.24 : 129,221.76 = 53,365.44 : x - Step 2: Convert to fraction form
93,642.24/129,221.76 = 53,365.44/x - Step 3: Cross multiply
93,642.24x = 129,221.76 × 53,365.44 - Step 4: Simplify right side
93,642.24x = 6,895,976,079.97 - Step 5: Solve for x
x = 6,895,976,079.97/93,642.24 - Step 6: Final answer
x = 73,641.72
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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.