Finding the Fourth Proportional to 68,312.99, 102,478.04 and 36,679.55
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Solution
The fourth proportional to 68,312.99, 102,478.04 and 36,679.55 is: 55,023.91
Step by Step Solution
- Step 1: Write the proportion equation
68,312.99 : 102,478.04 = 36,679.55 : x - Step 2: Convert to fraction form
68,312.99/102,478.04 = 36,679.55/x - Step 3: Cross multiply
68,312.99x = 102,478.04 × 36,679.55 - Step 4: Simplify right side
68,312.99x = 3,758,847,696.29 - Step 5: Solve for x
x = 3,758,847,696.29/68,312.99 - Step 6: Final answer
x = 55,023.91
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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.