Finding the Fourth Proportional to 85,675.68, 128,522.14 and 29,508.39
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Solution
The fourth proportional to 85,675.68, 128,522.14 and 29,508.39 is: 44,265.55
Step by Step Solution
- Step 1: Write the proportion equation
85,675.68 : 128,522.14 = 29,508.39 : x - Step 2: Convert to fraction form
85,675.68/128,522.14 = 29,508.39/x - Step 3: Cross multiply
85,675.68x = 128,522.14 × 29,508.39 - Step 4: Simplify right side
85,675.68x = 3,792,481,356.98 - Step 5: Solve for x
x = 3,792,481,356.98/85,675.68 - Step 6: Final answer
x = 44,265.55
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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.