Finding the Fourth Proportional to 76,730.58, 115,077.63 and 29,328.26
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Solution
The fourth proportional to 76,730.58, 115,077.63 and 29,328.26 is: 43,985.41
Step by Step Solution
- Step 1: Write the proportion equation
76,730.58 : 115,077.63 = 29,328.26 : x - Step 2: Convert to fraction form
76,730.58/115,077.63 = 29,328.26/x - Step 3: Cross multiply
76,730.58x = 115,077.63 × 29,328.26 - Step 4: Simplify right side
76,730.58x = 3,375,026,077.44 - Step 5: Solve for x
x = 3,375,026,077.44/76,730.58 - Step 6: Final answer
x = 43,985.41
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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.