Finding the Fourth Proportional to 79,762.78, 110,073.90 and 43,952.68
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Solution
The fourth proportional to 79,762.78, 110,073.90 and 43,952.68 is: 60,655.39
Step by Step Solution
- Step 1: Write the proportion equation
79,762.78 : 110,073.90 = 43,952.68 : x - Step 2: Convert to fraction form
79,762.78/110,073.90 = 43,952.68/x - Step 3: Cross multiply
79,762.78x = 110,073.90 × 43,952.68 - Step 4: Simplify right side
79,762.78x = 4,838,042,903.05 - Step 5: Solve for x
x = 4,838,042,903.05/79,762.78 - Step 6: Final answer
x = 60,655.39
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1.5x scale
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.