Finding the Fourth Proportional to 79,547.24, 109,778.02 and 43,739.98
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Solution
The fourth proportional to 79,547.24, 109,778.02 and 43,739.98 is: 60,362.73
Step by Step Solution
- Step 1: Write the proportion equation
79,547.24 : 109,778.02 = 43,739.98 : x - Step 2: Convert to fraction form
79,547.24/109,778.02 = 43,739.98/x - Step 3: Cross multiply
79,547.24x = 109,778.02 × 43,739.98 - Step 4: Simplify right side
79,547.24x = 4,801,688,399.24 - Step 5: Solve for x
x = 4,801,688,399.24/79,547.24 - Step 6: Final answer
x = 60,362.73
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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.