Finding the Fourth Proportional to 62.01, 85.48 and 56.99
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Solution
The fourth proportional to 62.01, 85.48 and 56.99 is: 78.55
Step by Step Solution
- Step 1: Write the proportion equation
62.01 : 85.48 = 56.99 : x - Step 2: Convert to fraction form
62.01/85.48 = 56.99/x - Step 3: Cross multiply
62.01x = 85.48 × 56.99 - Step 4: Simplify right side
62.01x = 4,870.94 - Step 5: Solve for x
x = 4,870.94/62.01 - Step 6: Final answer
x = 78.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.