Finding the Fourth Proportional to 76,588.62, 105,701.79 and 43,054.62
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Solution
The fourth proportional to 76,588.62, 105,701.79 and 43,054.62 is: 59,420.71
Step by Step Solution
- Step 1: Write the proportion equation
76,588.62 : 105,701.79 = 43,054.62 : x - Step 2: Convert to fraction form
76,588.62/105,701.79 = 43,054.62/x - Step 3: Cross multiply
76,588.62x = 105,701.79 × 43,054.62 - Step 4: Simplify right side
76,588.62x = 4,550,950,401.77 - Step 5: Solve for x
x = 4,550,950,401.77/76,588.62 - Step 6: Final answer
x = 59,420.71
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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.