Finding the Fourth Proportional to 83,215.79, 124,830.56 and 27,054.62
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Solution
The fourth proportional to 83,215.79, 124,830.56 and 27,054.62 is: 40,584.17
Step by Step Solution
- Step 1: Write the proportion equation
83,215.79 : 124,830.56 = 27,054.62 : x - Step 2: Convert to fraction form
83,215.79/124,830.56 = 27,054.62/x - Step 3: Cross multiply
83,215.79x = 124,830.56 × 27,054.62 - Step 4: Simplify right side
83,215.79x = 3,377,243,744.90 - Step 5: Solve for x
x = 3,377,243,744.90/83,215.79 - Step 6: Final answer
x = 40,584.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.