Finding the Fourth Proportional to 79,177.68, 109,201.50 and 61,320.96
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Solution
The fourth proportional to 79,177.68, 109,201.50 and 61,320.96 is: 84,573.59
Step by Step Solution
- Step 1: Write the proportion equation
79,177.68 : 109,201.50 = 61,320.96 : x - Step 2: Convert to fraction form
79,177.68/109,201.50 = 61,320.96/x - Step 3: Cross multiply
79,177.68x = 109,201.50 × 61,320.96 - Step 4: Simplify right side
79,177.68x = 6,696,340,813.44 - Step 5: Solve for x
x = 6,696,340,813.44/79,177.68 - Step 6: Final answer
x = 84,573.59
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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.