Finding the Fourth Proportional to 76,903.05, 115,319.88 and 32,506.95
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Solution
The fourth proportional to 76,903.05, 115,319.88 and 32,506.95 is: 48,745.76
Step by Step Solution
- Step 1: Write the proportion equation
76,903.05 : 115,319.88 = 32,506.95 : x - Step 2: Convert to fraction form
76,903.05/115,319.88 = 32,506.95/x - Step 3: Cross multiply
76,903.05x = 115,319.88 × 32,506.95 - Step 4: Simplify right side
76,903.05x = 3,748,697,573.17 - Step 5: Solve for x
x = 3,748,697,573.17/76,903.05 - Step 6: Final answer
x = 48,745.76
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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.