Finding the Fourth Proportional to 86,774.36, 119,705.46 and 58,430.84
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Solution
The fourth proportional to 86,774.36, 119,705.46 and 58,430.84 is: 80,605.50
Step by Step Solution
- Step 1: Write the proportion equation
86,774.36 : 119,705.46 = 58,430.84 : x - Step 2: Convert to fraction form
86,774.36/119,705.46 = 58,430.84/x - Step 3: Cross multiply
86,774.36x = 119,705.46 × 58,430.84 - Step 4: Simplify right side
86,774.36x = 6,994,490,580.39 - Step 5: Solve for x
x = 6,994,490,580.39/86,774.36 - Step 6: Final answer
x = 80,605.50
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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.