Finding the Fourth Proportional to 84,860.40, 117,126.63 and 56,181.14
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Solution
The fourth proportional to 84,860.40, 117,126.63 and 56,181.14 is: 77,542.73
Step by Step Solution
- Step 1: Write the proportion equation
84,860.40 : 117,126.63 = 56,181.14 : x - Step 2: Convert to fraction form
84,860.40/117,126.63 = 56,181.14/x - Step 3: Cross multiply
84,860.40x = 117,126.63 × 56,181.14 - Step 4: Simplify right side
84,860.40x = 6,580,307,012.13 - Step 5: Solve for x
x = 6,580,307,012.13/84,860.40 - Step 6: Final answer
x = 77,542.73
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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.