Finding the Fourth Proportional to 79,587.68, 109,828.69 and 43,777.70
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Solution
The fourth proportional to 79,587.68, 109,828.69 and 43,777.70 is: 60,411.95
Step by Step Solution
- Step 1: Write the proportion equation
79,587.68 : 109,828.69 = 43,777.70 : x - Step 2: Convert to fraction form
79,587.68/109,828.69 = 43,777.70/x - Step 3: Cross multiply
79,587.68x = 109,828.69 × 43,777.70 - Step 4: Simplify right side
79,587.68x = 4,808,046,893.07 - Step 5: Solve for x
x = 4,808,046,893.07/79,587.68 - Step 6: Final answer
x = 60,411.95
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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.