Finding the Fourth Proportional to 91,595.36, 137,401.74 and 28,416.17
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Solution
The fourth proportional to 91,595.36, 137,401.74 and 28,416.17 is: 42,626.95
Step by Step Solution
- Step 1: Write the proportion equation
91,595.36 : 137,401.74 = 28,416.17 : x - Step 2: Convert to fraction form
91,595.36/137,401.74 = 28,416.17/x - Step 3: Cross multiply
91,595.36x = 137,401.74 × 28,416.17 - Step 4: Simplify right side
91,595.36x = 3,904,430,515.13 - Step 5: Solve for x
x = 3,904,430,515.13/91,595.36 - Step 6: Final answer
x = 42,626.95
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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.