Finding the Fourth Proportional to 76,928.61, 115,349.63 and 52,941.09
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Solution
The fourth proportional to 76,928.61, 115,349.63 and 52,941.09 is: 79,381.85
Step by Step Solution
- Step 1: Write the proportion equation
76,928.61 : 115,349.63 = 52,941.09 : x - Step 2: Convert to fraction form
76,928.61/115,349.63 = 52,941.09/x - Step 3: Cross multiply
76,928.61x = 115,349.63 × 52,941.09 - Step 4: Simplify right side
76,928.61x = 6,106,735,275.65 - Step 5: Solve for x
x = 6,106,735,275.65/76,928.61 - Step 6: Final answer
x = 79,381.85
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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.