Finding the Fourth Proportional to 77,818.42, 116,764.08 and 38,354.02
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Solution
The fourth proportional to 77,818.42, 116,764.08 and 38,354.02 is: 57,548.99
Step by Step Solution
- Step 1: Write the proportion equation
77,818.42 : 116,764.08 = 38,354.02 : x - Step 2: Convert to fraction form
77,818.42/116,764.08 = 38,354.02/x - Step 3: Cross multiply
77,818.42x = 116,764.08 × 38,354.02 - Step 4: Simplify right side
77,818.42x = 4,478,371,859.60 - Step 5: Solve for x
x = 4,478,371,859.60/77,818.42 - Step 6: Final answer
x = 57,548.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.