Finding the Fourth Proportional to 79,159.68, 109,237.08 and 43,349.08
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Solution
The fourth proportional to 79,159.68, 109,237.08 and 43,349.08 is: 59,819.94
Step by Step Solution
- Step 1: Write the proportion equation
79,159.68 : 109,237.08 = 43,349.08 : x - Step 2: Convert to fraction form
79,159.68/109,237.08 = 43,349.08/x - Step 3: Cross multiply
79,159.68x = 109,237.08 × 43,349.08 - Step 4: Simplify right side
79,159.68x = 4,735,326,919.89 - Step 5: Solve for x
x = 4,735,326,919.89/79,159.68 - Step 6: Final answer
x = 59,819.94
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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.