Finding the Fourth Proportional to 84,678.44, 116,865.87 and 48,878.06
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Solution
The fourth proportional to 84,678.44, 116,865.87 and 48,878.06 is: 67,457.28
Step by Step Solution
- Step 1: Write the proportion equation
84,678.44 : 116,865.87 = 48,878.06 : x - Step 2: Convert to fraction form
84,678.44/116,865.87 = 48,878.06/x - Step 3: Cross multiply
84,678.44x = 116,865.87 × 48,878.06 - Step 4: Simplify right side
84,678.44x = 5,712,177,005.81 - Step 5: Solve for x
x = 5,712,177,005.81/84,678.44 - Step 6: Final answer
x = 67,457.28
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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.