Finding the Fourth Proportional to 77,983.71, 117,027.45 and 42,453.99
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Solution
The fourth proportional to 77,983.71, 117,027.45 and 42,453.99 is: 63,709.23
Step by Step Solution
- Step 1: Write the proportion equation
77,983.71 : 117,027.45 = 42,453.99 : x - Step 2: Convert to fraction form
77,983.71/117,027.45 = 42,453.99/x - Step 3: Cross multiply
77,983.71x = 117,027.45 × 42,453.99 - Step 4: Simplify right side
77,983.71x = 4,968,282,192.03 - Step 5: Solve for x
x = 4,968,282,192.03/77,983.71 - Step 6: Final answer
x = 63,709.23
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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.