Finding the Fourth Proportional to 77,798.36, 107,363.87 and 47,583.14
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Solution
The fourth proportional to 77,798.36, 107,363.87 and 47,583.14 is: 65,666.03
Step by Step Solution
- Step 1: Write the proportion equation
77,798.36 : 107,363.87 = 47,583.14 : x - Step 2: Convert to fraction form
77,798.36/107,363.87 = 47,583.14/x - Step 3: Cross multiply
77,798.36x = 107,363.87 × 47,583.14 - Step 4: Simplify right side
77,798.36x = 5,108,709,282.42 - Step 5: Solve for x
x = 5,108,709,282.42/77,798.36 - Step 6: Final answer
x = 65,666.03
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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.