Finding the Fourth Proportional to 76,876.02, 115,106.35 and 39,862.26
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Solution
The fourth proportional to 76,876.02, 115,106.35 and 39,862.26 is: 59,685.70
Step by Step Solution
- Step 1: Write the proportion equation
76,876.02 : 115,106.35 = 39,862.26 : x - Step 2: Convert to fraction form
76,876.02/115,106.35 = 39,862.26/x - Step 3: Cross multiply
76,876.02x = 115,106.35 × 39,862.26 - Step 4: Simplify right side
76,876.02x = 4,588,399,251.35 - Step 5: Solve for x
x = 4,588,399,251.35/76,876.02 - Step 6: Final answer
x = 59,685.70
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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.