Finding the Fourth Proportional to 61.35, 91.51 and 56.98
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Solution
The fourth proportional to 61.35, 91.51 and 56.98 is: 84.99
Step by Step Solution
- Step 1: Write the proportion equation
61.35 : 91.51 = 56.98 : x - Step 2: Convert to fraction form
61.35/91.51 = 56.98/x - Step 3: Cross multiply
61.35x = 91.51 × 56.98 - Step 4: Simplify right side
61.35x = 5,214.24 - Step 5: Solve for x
x = 5,214.24/61.35 - Step 6: Final answer
x = 84.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.