Finding the Fourth Proportional to 79,460.36, 109,665.80 and 51,248.06
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Solution
The fourth proportional to 79,460.36, 109,665.80 and 51,248.06 is: 70,729.09
Step by Step Solution
- Step 1: Write the proportion equation
79,460.36 : 109,665.80 = 51,248.06 : x - Step 2: Convert to fraction form
79,460.36/109,665.80 = 51,248.06/x - Step 3: Cross multiply
79,460.36x = 109,665.80 × 51,248.06 - Step 4: Simplify right side
79,460.36x = 5,620,158,693.78 - Step 5: Solve for x
x = 5,620,158,693.78/79,460.36 - Step 6: Final answer
x = 70,729.09
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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.