Finding the Fourth Proportional to 72,805.74, 100,502.93 and 48,946.26
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Solution
The fourth proportional to 72,805.74, 100,502.93 and 48,946.26 is: 67,566.68
Step by Step Solution
- Step 1: Write the proportion equation
72,805.74 : 100,502.93 = 48,946.26 : x - Step 2: Convert to fraction form
72,805.74/100,502.93 = 48,946.26/x - Step 3: Cross multiply
72,805.74x = 100,502.93 × 48,946.26 - Step 4: Simplify right side
72,805.74x = 4,919,242,201.14 - Step 5: Solve for x
x = 4,919,242,201.14/72,805.74 - Step 6: Final answer
x = 67,566.68
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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.