Finding the Fourth Proportional to 79,292.70, 109,427.08 and 43,483.99
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Solution
The fourth proportional to 79,292.70, 109,427.08 and 43,483.99 is: 60,009.64
Step by Step Solution
- Step 1: Write the proportion equation
79,292.70 : 109,427.08 = 43,483.99 : x - Step 2: Convert to fraction form
79,292.70/109,427.08 = 43,483.99/x - Step 3: Cross multiply
79,292.70x = 109,427.08 × 43,483.99 - Step 4: Simplify right side
79,292.70x = 4,758,326,052.45 - Step 5: Solve for x
x = 4,758,326,052.45/79,292.70 - Step 6: Final answer
x = 60,009.64
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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.