Finding the Fourth Proportional to 79,048.82, 118,656.77 and 77,263.99
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Solution
The fourth proportional to 79,048.82, 118,656.77 and 77,263.99 is: 115,977.63
Step by Step Solution
- Step 1: Write the proportion equation
79,048.82 : 118,656.77 = 77,263.99 : x - Step 2: Convert to fraction form
79,048.82/118,656.77 = 77,263.99/x - Step 3: Cross multiply
79,048.82x = 118,656.77 × 77,263.99 - Step 4: Simplify right side
79,048.82x = 9,167,894,807.75 - Step 5: Solve for x
x = 9,167,894,807.75/79,048.82 - Step 6: Final answer
x = 115,977.63
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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.